6. a. 28
b. 20
c. 19
d. 152

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

answer: 590

step-by-step explanation:

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of