Solve the equation below for xC - 4 = 7
A. x=3/c
B. x=c/11
C. x=c/3
D. x=11/c

Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

What does the sign of the slope tell you about a line?