Answer:
A
Step-by-step explanation:
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Answer:
7×17/49
Step-by-step explanation:
90/7 × 4/7
90×4 / 7×7
360/49
7 17/49
Answer:
x=9
Step-by-step explanation:
81 is the product of -9 & -9. -9-9=-18. Therefore, (x-9)^2=0, and you get that x=9.
Answer:
a is option c
b is 17.5
c is 9
Step-by-step explanation:
I do not know if all of these are right