Find the area of washers whose external and internal diameter are 15cm and 13cm

≈ 44 cm²

Step-by-step explanation:

the area (A) of the washer is found using A = πr² ( r is the radius )

A = external area - internal area

external radius = = 7.5 cm

internal radius = = 6.5 cm

A = π ( 7.5² - 6.5² ) = π (56.25 - 42.25 ) = 14π ≈ 44 cm²

im alright what do you need

step-by-step explanation:

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i