After simplifying, the answer comes to x-y. I Hope this helped :).
All numbers are real numbers.

is irrational
Answer:
Area = 60
Step-by-step explanation:
(h b)/2
h = 10
b = 12
12 x 10 = 120
120/2 = 60
(h = height and b = base)
Step-by-step explanation:
it's been a while but I think it's 84°
Answer:
rate=55 percent
Step-by-step explanation:
SI=PRT
p=90
r=?
t=2
si=99
R=SI÷PT
R=99÷90×2
r=99÷180=0.55
r=0.55×100
R=55%