Answer:
D. 21
Step-by-step explanation:
replace 21 for r, 4(21)=84
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Hope this helps!
Because in order to find r, you need to divide both sides by 4 to get r = 21.
So that means there will be 21 rhinestones on each backpack.
the answer is A
f(x) = x³ – 2x² – x + 2
0 = x3 – 2x2 – x + 2
(x-2)(x-1)(x+1)=0
x1=-1
x2=1
x3=2
x = 5/4
√2+√2+√2+√2 = 2^x
4√2 = 2^x
4√2 = =
x = 5/2
