In another project, researchers caught and tagged 85 sea lions in a bay. later they caught and released 50 sea lions. of those, 9 had tags. estimate the sea lion population in the bay. about 529 sea lions about 472 sea lions about 194 sea lions about 153 sea lions

48 / 6 = x

in this case, x will equal the amount of money in each card!

x therefore will be 8.

trent had $8 in each birthday card.

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).