X over 2 equals 15 what's the value of x

If x=10, what algebraic property does 5x=5*10 represent? a) multiplicative identity b) multiplicative inverse c) multiplication property of equality d) associative property of multiplication* I picked d. Is this correct?

There are 218 calories in a kitcat bar. How many calories would there be in 16 kitcat bars?

If a=6, b=-2 what is (ab) squared

Solve the equation 3x+15=3 (x+5)

I have 4 factors three of my factors are 1, 2 and 6 what is my fourth factor

X + (-13) = - 5 what is the solution to the following equation

Suppose you have 5 red cards, 10 green cards, and 11 blue cards. The cards are well shuffled and you randomly draw one card.

What is the least common multiple of 4 and 10?

A high school athletic department bought 40 soccer uniforms at a cost of $3000. After soccer season they returned some of the uniforms but only received $40 per uniform.

A 1. Given f (x) = 2x + 1 and g (x) = 3x + 1, find: a) f (3) b) g (f (3)) c) g (3)