To find a percentage of a number, multiply by the decimal form of that percentage(20%=0.20). So, take the cost, $430, and multiply by common state sales tax (7% for me)---430 x 0.07 = 30.10 The sale tax rate is 7%.
Step-by-step explanation:
b.) 8/7≈ 1.1
Final.) and then using the exponential decay formula, 18.1 will be left after
(5,0) if it’s asking the solution or do you want the equation? Technically the solution would be where the parabola touched the x axis
(-infinity,2)U(2,infinity)
{x/xnot=2}
this is what I found