What is the multiplication inverse of 1/4 a. 1.8
b. 1/2
c. 4
d 8/1

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Proving the congruent supplements theorem