Marco has $400. Each week, Marco adds $5 to his bank account. Select the equation that best represents how much money Marco will save over time. S represents savings and w represents weeks.

w + 400 + 5 = s

400w + 5 = s

5w + 400 = s

5s + 400 = w

PLSS HURRY

Icould really use some with this question.

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.