Factor 60y-90-20X to identify the equivalent expressions. Choose 2 answers:

A) 5(14y−16−4x)

B) 2(30−45−10)

C) 5(12y−18−4x)

D) 10(6y−9−2x)

Please I need help :)

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?

Use this graph to find the cost of 6 show tickets

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?