Answer:

Step-by-step explanation:
Let x be the percentage then...

Start by dividing both sides by 4:

Simplify the fraction:

Then, multiply the fraction by 50/50, so we can get a number over 100 (that number would be the percentage). Note we can only multiply it by 50/50 since it is essentially multiplying the fraction by 1.

Percentage change = difference/original x 100
(9.00-7.50)/7.50 x 100 = 2.50/7.50 x 100
= 1/3 x 100
= 33.3% increase
Answer:
y-9=(x-1)
Step-by-step explanation: the formula is y-k=m(x-h)
Tan42°=x/35
x=35tan42° units
x≈31.51 units (to nearest hundredth of a unit)