Answer:
22
Step-by-step explanation:
90*x = 70
x = 7/9
x = 78%
100-78 = 22
A=74%
B=$321.75
if my calculations are correct.
Answer:
gradient is 8 and y intercept is 0
Step-by-step explanation:
y=mc+b
take one pair of corridants:
8=1m+b
m=8 (change in y values/changes in x values)
8=1x8+b
do the equation
y=0
Have a nice day!!!!!!!!! :-)
<u>KA</u>
First, square both sides. This will cancel out the radical.

(a^2 = b + 6)
Then subtract 6 from both sides
b = a^2 - 6
9 of his buttons are not red. 1/8 of 72 is 9
72×1/8=8
72÷8=9