73. erin is 25 years younger than her father. the sum
of their ages is 75. how old is erin?

25 years old

25years old+25 years between=50 Erin's father

25 years old+50 Erin's father=75

Erin is 25 years old

Step-by-step explanation: Because 50 +25 is 75 and 25-50 is 25

it happens during combustion and impacts the environment because the plants and trees take in that and it can cause them to die.

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10