Which ratios can form proportion?

a) 9/45,8/20

b) 8/12, 12/21

c) 8/12, 12/15

d) 9/22, 14/28

Simplify the following expression (4x-3) (12x+2)

Tonya went out to a restaurant for lunch. she tipped 12% of her bill, which brought the sum of the lunch bill plus the tip to $28. how much was the original bill?

I Forgot how to do substitution and elimination im in Algerbra 1

The planet mercury takes 56.6 earth days to rotate how many times will it rotate in one year

The length of a rectangle is 1/4 of the width the perimeter is 10 inches what is the width?

What is the volume of an aquarium that is 2 yards wide, 1.5 yards deep, and 1 1/3 yard long?

g a. A 99% confidence level and a sample of 24 observations. 2.807 2.807 Correct b. A 90% confidence level and a sample of 24 observations. 1.714 1.714 Correct c. A 99% confidence level and a sample of 20 observations. 2.845 2.845 Incorrect d.

Rate of proportionality for (-2,4) and (-1,1)

Write the number in standard form 4,00+300+20+9

How do you write 81,271 in words