Answer:
fkdixisidskkxjx
Step-by-step explanation:
dkxndkkcmxkdlcld
Expressions are mathematical statements represented with the variables
The value of 12x^-3 y-1 for x=-1 and y=5 is - 12/5
<h3>How to determine the value of the variable</h3>
The expression is given as:

When x = -1, the expression becomes

Evaluate the exponent

When y = 5, the expression becomes

Evaluate the exponent
- 12/5
Hence, the value of 12x^-3 y-1 for x=-1 and y=5 is - 12/5
Read more about expressions at:
brainly.com/question/723406
54 miles because Quinn runs 9 miles every week and 9x6=54
Answer:
-15/2 =x
Step-by-step explanation:
12(x+5)=4x
Distribute
12x +60 = 4x
Subtract 12x from each side
12x-12x +60 = 4x-12x
60 = -8x
Divide each side by -8
60/-8 = -8x/-8
15/-2 = x
-15/2 =x
Solve the equations: b=-1
Answer b=-1 ?
B=-1