Acopy machine makes copies at a constant rate. the machine can make 80 copies in 2.5 minutes. write an equation to represent the number of copies, n, that can be made over any time interval, t. ( answer this )

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .