Answer:
22r-1
Step-by-step explanation:
5(2r+1)-3(-4r+2) Distribute the terms
10r+5+12r-6 Combine like terms
22r-1
The answer is 90 because it’s closest to
90
7 x 1 = 7
5 x 3 = 15
20 x 1 = 20
So, the number that belongs in the green box is 2.
Answer:
fishy camera
Step-by-step explanation:
most distance in feet from surface
Answer:
4) 0.001
Step-by-step explanation:
The amount (a) present in h hours is ...
a(h) = (initial value)×(1/2)^(h/(half-life))
6 days is 6×24 hours, so the amount remaining is ...
a(6×24) = 50×(1/2)^(6×24/9) = 50/2^16 ≈ 0.001 . . . . milligrams