Which could be the measures of the three angles of an acute triangle.
a. 40, 90, 50
b. 45, 45, 90
c. 25, 25, 130
d. 70, 80, 30

D
An acute angle is less than 90 degrees 

It's only d because the measure have to be less than 90°

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8

25% increaseplus i think decrease i only know increase: ((