Simplify the expression. 12p5 : 11,880 95,040 7,920 1,235,520

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.