For Question A, part (4), Rashida said, "The customer can use the canoe for 23.3 minutes if she has $6." Serena said there are other
possibilities--for example, 20 minutes or 15 minutes. Rashida said you
can find the answer by solving the inequality 0.15t +2.50 S 6. This
inequality represents the times for which the rental costs at most $6.
Use the table, graph, and the equation 0.15t + 2.50 = 6 to find all times
for which the inequality is true. Express the solution as an inequality.

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step-by-step explanation:

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

it's d

step-by-step explanation:

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt