Answer:
C
Step-by-step explanation:
It’s how you would solve the equation
Answer: a
Step-by-step explanation:
multiply each answer by 10
Answer:
28 quarters and 5 dimes
7(Q)+5(D)
7(4)+5(10)
28Q 50D Q=quarters D=dimes
it would be more efficient to do the substitution method bc its faster and easier
Answer:
-⅔
Step-by-step explanation:
8^x = 4^(-1)
2^3x = 2^(-2)
3x = -2
x = -⅔
