7. Sarah invested $10,000 into a fund for 9 years. For the first 3 years
and 7 months she was earning 3.45% compounded semi-annually and
for the rest of the time she was earning 4.15% compounded quarterly.
How much will Sarah have in the fund at the end of the 9 years?

step-by-step explanation:

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.

ratio is 2 : 9

the answer is three

13.5 : 3

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b