Answer:
Step-by-step explanation:
where is the questions?
Answer: 70x^2 -50x
^ means exponent
22
Circumference = diameter * pi = 22 * pi
let the grade points be a,b,c
a+b+c=258
b=c+10( since she noticed that on tests two and three,she scored 10 points fewer).
Answer: 5x+16
Distribute
2x+12 + 3x + 4
Add like terms
5x+16
