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a. 2^4 or 16

b. 324

Step-by-step explanation:

a. I think you can take 4 and put it as the exponent using properties of logs. so it becomes ln 2^4

b. you use the same property and get

ln 6^2 + ln 3^2 and use the addition/multiplication property one to combine them and get

ln 6^2 * 3^2

or ln 36 * 9

or ln 324

hopefully that works

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.