This is my exercise for my study because tomorrow i have exam. Kinda need help.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4? r^2. write your answer in scientific notation.