Write 2^60 as an exponent with a base of: 4 , 16

pls explain why you got it, thx!

What’s the ratio in simplest form if you count 14 robins out of 150 birds

What is the solution to the equation 9^(x+1) =27

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.