How do components of a DNA molecule influence its physical properties? Deoxyribose and phosphate, linked by phosphodiester bonds, form repeating units to make up the backbone of DNA.
Deoxyribose molecules, nitrogenous bases, and phosphate side chains are linked by glycosidic bonds to give DNA its helical shape.
Nitrogenous bases and phosphate groups are linked by peptide bonds and then folded to give DNA its helical shape.
Nitrogenous bases have a phosphate bound to their 3' end and a deoxyribose bound to their 5' end to form the backbone of DNA.

In 1990, a total of $514 billion was spent on food and drinks in a particular country. In 2003, the total spent was $904 billion.

(a)

Find the equation of the exponential function that can be used to model the total T spent (in billions of dollars) on food and drinks in this country as a function of the number of years t since 1990. (Round your decimal value to four decimal places.)

T = answer a

(b)

Use your model to predict the amount spent (in billions of dollars) in 2000. (Round your answer to the nearest integer.)

answer b billion dollars

(c)

What is your prediction for the total sales of food and drink (in billions of dollars) in 2018? (Round your answer to the nearest integer.)

answer c billion dollars

(d)

Estimate when the total sales will reach $2 trillion if this exponential trend continues. (Round your answer to two decimal places.)

tStep-by-