when you know the original price of an item and the price you paid at a register, how can you find the tax rate ?

answer: a.   one is a factor of every whole number since every number is divisible by itself.

step-by-step explanation:

b and c

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)