Answer:
Step-by-step explanation:
You have to multiply 30 cents until you get to the total.
t = 4 x 12
t = total # of marbles
Equation: t = 4 x 12
=48
1st: 2m
2nd: 2*7
3rd: 14
x²+2 ×x×5+5²=-20x+2×x×5-3
(x+5)²=-20+10x-3
(x+5)²=-10x-3
Answer:Step-by-step explanation:
10
