Ineed with these three problems ? ?

16. $2142.00

Step-by-step explanation:

  2100 - 2100(0.15)

= 2100 - 315

= 1785

                                1785 + 1785(0.20)

                             = 1785 + 357

                             = 2142

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17. $283.25

Step-by-step explanation:

Let x represent the price of the glove before tax

x + x(0.165) = 329.99

1.165x = 329.99

÷1.165   ÷1.165  

        x = 283.25

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18. $0.25 per topping

Step-by-step explanation:

Choose any 2 points.  I chose (2, 3.00) and (4, 3.50)

Use the slope formula to find the rate:

rate =

      =

      =

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.