If 14 gallons of paint cover 13 of a wall, then how much paint is needed for the entire wall? A : 12gallon
B : 34gallon
C : 113gallons
D : 2 gallons

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

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.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.