Sally received a $141 gift card for a coffee shop. Sally used it to buy coffee that cost $2.43 per pound. Sally has $83.16 left on the gift card. How many pounds of coffee did sally buy? Round to the nearest hundredth.

23.8 pounds

Step-by-step explanation:

First we have to find how much she spend on coffee altogether, so our equation is:

141 - 83.16 = 57.84

Then we have to find how many times 2.43 goes into 57.84 so our equation is:

57.84 ÷ 2.43 = 23.8

So Sally bought 23.8 pounds of coffee

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)