No about a computer cartridge for $28.50 sales tax on the cartridge was 6.5% what was the total amount that noah paid for the cartridge

To calculate sales tax’s addition in the items price, convert the percentage into a decimal. For 6.5%, it become .065.

Multiple the cost of the item by the sales tax.

28.50 * .065 = 1.85

This gives you the amount *added onto* the price of the item. So add this value to the initial price for the total cost.

28.50 + 1.85 = 30.35

To make this simpler, you can multiply the initial price by (1 + sales tax decimal), or 1+.065, which is 1.065.

28.50 * 1.065 = 30.35

Whichever way you chose works!

What is the last question i don’t see it?

(6,1)(5,4)slope = (4 - 1) / (5 - 6) = 3/-1 = -3y = mx + bslope(m) = -3use either of ur , = 6 and y = 1now sub and find b, the y int1 = -3(6) + b1 = -18 + b1 + 18 = b19 = bso ur equation is : y = -3x + we need it in standard formy = -3x + 3x to both sides3x + y = 19 < == standard form