Answer:
7 7/24
Step-by-step explanation:
first put the wholes inside the fraction:


Then multiply numerator times numerator, denominator times denominator and take out wholes again:

Answer:
12
Step-by-step explanation:
a² + b² = c²
a² + 9² = 15²
a² + 81 = 225
a² = 225 - 81
a² = 144

a = 12
The answer it’s y=2.54x I just did the assignment