A $78.00 pair of shoes cost $84.63 after tax is added. What is the tax rate?

the tax rate is by 8%

Step-by-step explanation:

the reason that is the answer is because you must subtract 78 by 84.63 to get 6.63 then you divide 78 from 6.63 to get 0.085 then you multiply that by 100 to get your percentage which is 8.5% or 8%

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.