Country A and country B initially have the same per capita income. Suppose that A sustains an annual growth rate of 3.5 percent, while the annual growth rate of country B is 1.75 percent. The "rule of 70" indicates that after forty years, the per capita income of country A will be approximately that of country B.A) one-half
B) 70 percent greater than
C) twice
D) four times

C. Twice

Explanation:

The formula of Rule of 70 states

Number of years to double = 70 ÷ annual percentage growth rate.

For A to double current per capital income it will take 70 ÷ 3.5 = 20 years.

So in 40 years A would be Four times its initial per capital.

For B to double = 70/ 1.75 = 40 years.

So in 40 years B would be two times its initial per capita.

Therefore, in 40 years, A per capita would be twice that of B.

The Enabling Act empowered the people of the Oklahoma and Indian territories to elect delegates to a constitutional convention and set up a state capital temporarily at Guthrie, in former Oklahoma Territory.

Explanation:

A controversy concerning the issue of single Oklahoma statehood or admission as two states (one formed from Oklahoma Territory and one from Indian Territory) proceeded throughout the 1890s and into the first years of the twentieth century. After the introduction of a bill for admitting Indian Territory as the State of Sequoyah sank in Congress in December 1905–January 1906, Pres. Theodore Roosevelt recommended joint statehood. In the Fifty-ninth Congress seven bills were introduced to accomplish this. The issue was complicated by a proposal to admit the territories of Arizona and New Mexico as one state. This latter was a sticking point, and considerable controversy surrounded the writing of a suitable bill. A compromise achieved in early June 1906 provided for the admission of Arizona and New Mexico as one state, if their populations so agreed in separate elections, and admission of Oklahoma and Indian Territory as one, upon writing and ratifying a constitution. The Senate approved on June 13, the House on June 14, and the president on June 16.