Colin's shopping basket has items costing $7.90, $3.75, $4.15, and $4.20. Estimate his total cost.
Click on the correct answer.
$24
$20
$16
$17

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

Subject: geometryneed with 6 and 7