PLEASE HELP MEEE 1. find the amount of tax and the total cost of a $70 object taxed at 15%

2. Joe borrowed $2,000 from the bank at a rate of 7% simple interest per year . How much interest did he pay in 5 years ? what is the total amount he has to pay back ?

3. teresa's restaurant bill comes to $30 before tax. If the sales tax is 6.25% and she tips the waiter 20%, what is the total cost of the meal ?

the answer is 62.8 cubic units

i believe that the answer is

b. y-1=-2(x-4)

hope this !

b. 2 and 4

step-by-step explanation:

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: