Use your knowledge about parentheses and substitution to solve the following: q = 1; r = 2; s = 3; t = 4; x = 5; y = 6 7. 2(x + 4) + 10 = 8. 3(6x) + 4 = 9. 10(xy) = 10. 5(x + y) = 11. 2(rs) + 4(x) 12. 2(q) + 2(x + t) = 13. 6(7t + 4s) = 14. 9(10x) + 10y = 15. 2x(xy) = 16. r(s)(t) = 17. (r)(s)(t)(x)(y) = 18. (7x + 2Y) =

a) 32pie square meters

step-by-step explanation:

my answer got deleted but it's a

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation: