Bradley needs to paint a logo made using two right triangles. the dimensions of the logo are shown below. what is the total area of the two triangles that need to be painted?

two right triangles are attached along their longest side. the smaller triangle has height 6 cm and base 2 cm. the height of the larger triangle is 7 cm, and its base is 3 cm.

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

the answer is b.

surface area: 169π

volume: 366π

i got it down.