So,

Write in prime factored form.

Cross-cancel
Answer: 
Step-by-step explanation:
x^2+y^2=r^2 --> subtract x^2 to other side
y^2=r^2-x^2 --> square root both sides
y=sqrt(r^2-x^2)
Answer:
SU = 22
Step-by-step explanation:
SR = RU
4x - 1 = x + 8
3x - 1 = 8
3x = 9
x = 3
SR = 4(3) - 1 = 11
RU = 3 + 8 = 11
SU = 11 + 11 = 22
Answer:
Step-by-step explanation:
175-20%= 35 off
175-35=140
140*8% tax= 11.20 tax
140+11.20= 151.20
151.20*18% tip= 27.216
151.20+27.22=178.42 total