9,000*56+91-1+3589-999*56*41 equal find answer

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.