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%
12/52
3*4 = 12
there’s 52 cards in total
The correct answer is<span> 3. x-84=3x
That's because
</span>X/12 - 7 = x/4 is also (x-84)/7 = x/4 and when you cross multiply it you get (x-84)*4 = x * 7
4x-336=7x
-3x = 336
x = 336/-3
x = -112