Answer: The answer is A
Step-by-step explanation: because 5x-30= -150 because I looked it up
Answer:
-21
28
Step-by-step explanation:
1) if r = -4
Substitute r = -4 in 3r - 9
= 3 * (-4) - 9
= -12 - 9
= -21
2) ( 4 / 7 ) * x = 16
4 * x = 16 * 7
x = 4 * 7
x = 28
2z^7
-3--5=2. z^7
Since both have the same exponent
9/25 is the answer. Your welcome
Answer:
-1
Step-by-step explanation:
5^(3b-1) = 5^(b-3)
3b-1=b-3 / +1 -b
2b = -2
b = -1
