Give the coefficient matrix of the follwoing system 9×2 +2 × y - 6 x 2 x z= 9
9×2 - 9 × y + 3 x 2 x z = 9

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !

Arectangular courtyard is 12 feet long and 8 feet wide. a tile is 2 feet long and 2 feet wide. how many tiles are needed to cover the courtyard?