It costs $45 for 3 xylophones and 3 yo-yo's. If you purchased 5 xylophones an 6 yo-yo's, it would cost $80. Set up a system of equations and solve for the
cost of a single xylophone and a single yo-yo.

answer: 414,377,008

step-by-step explanation:

just multiply it

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

i think it would be c

mark brainliest if im right

step-by-step explanation: