PLEASE HELP:) Which of the following projections is MOST accurate?

A) When the peak temperature is 40°C ,35 units of electricity are used on average

B) When the peak temperature is 40°C, 120 units of electricity are used on average

C) When the peak temperature is 40°C, 48 units of electricity are used on average

D) When the peak temperature is 40°C , 72 units of electricity are used on average

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w