HELP PLEASE BRAINLIEST 1. When you add two opposite numbers (Ex. -4 and 4 or 10 and -10), they will cancel each other out.

True

False

2. The OPPOSITE of multiplying by a number is to subtract by a number.

True

False

True, False

Step-by-step explanation:

I am unsure as to why this is considered High School Math but here’s the reasoning.

For question 1, adding two opposite numbers will result in a cancellation to 0 because the numbers will simply be adding or subtracting themselves. 4+ (-4) = 0. Same with 10 + (-10).

For question 2, the opposite of multiplying by a number is to divide by the number, not subtracting. If you divide a number by the same number you multiplied with intially, you will always receive the same initial number. With subtraction, there is the possibility that this will not work. For example, 3 x 8 = 24, but 24 - 8 ≠ 3.

$678.83

Step-by-step explanation:

Given :

Principal, P = $600

Rate = 3.09% = 0.0309

Period, t = 4 years

Compounding times per period, n = 12 (monthly)

The compound interest formula :

A = P(1 + r/n)^nt

A = 600(1 + 0.0309/12)^(12*4)

A = 600(1 + 0.002575)^48

A = 600(1.002575)^48

A = 600 * 1.1313834

A = 678.83004

Worth in 4 years = $678.83