Answer:
the answer is 4
Step-by-step explanation:
if y=21 the we substitute in the main equation
21=8x-11
8x=32
x=4
Answer:
a
Step-by-step explanation:
86 × π = 86π
or
86 × 3.14 = 270.04
you can use both of them depends on what form the question is asking that ur answer be in