The sum of the measures of angle M and angle R is 90° The measure of angle M is (5x + 10)°
The measure of angle R is 55°
What IS the value of x?

M+R=90 (Given)

(5x+10)+55=90 (given)

5x+10=90-55

5x+10=35

5x=35-10

5x=25

5x÷5=25÷5 (divide both sides by 5)

x=5

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.