1) The electric company charges its customers based on usage. The billing amount is based on the quantity of
clectricity consumed.
b- the billing amount
9 - the quantity of electricity consumed
A) Ind. Variable: the billing amount
Dep. Variable: the quantity of electricity consumed
B) Ind. Variable: the quantity of electricity consumed
Dep. Variable: the billing amount

x+y=90

x=30-y=x

step-by-step explanation:

if you understand you will get the answer

answer is 33

step-by-step explanation:

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

the answer is  

a.

4,624π mm2

step-by-step explanation: