HELP ASAP Which equation matches the following situation: A shirt, x, is discounted 20%; what is the sale price? y = 1.02x
y = (1 - 0.2)x
y = 1.2x
y = 0.02x

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

How do i multiply two digit numbers

What is the slope of the line (-7,2) (4,6)