HELP PLEASE!!
Rosa put three square tiles with sides 9 centimeters, 13 centimeters, and centimeters together so that they form a right triangle. Which statement is true about the area of the green tile?

A) A = ( 13 - 9 )^2
B) A = ( 13 + 9 )^2
C) A = 13^2 - 9^2
D) A = 13^2 + 9^2

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.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

What is the product? a-3/15a × 5/a-3