How to determine if its parallel or perpendicular?

Rodrigo buys a jacket that is on sale 1/4 off the original price of $80. he has a coupon for an additional 10% off. how much does rodrigo pay for the jacket? A.$49.50 B.$52.00 C.$54.00 D.$18.00 I don't know whether it's C. or D.

Use properties to evaluate the expression. (13 + 6) + 4

What is the variance with the data 8 2 4 3 5

The Earth revolves around the sun once per year, in a stable orbit. What is it that keeps the Earth in this orbit? A) Gravity B) The moon C) Sunlight D) Rotation

How do you make a fraction model when multiplying fractions

What is 3 and 1/5 x 9/10 as a mixed number?

Noel needs 1/3 cup of butter for one loaf. she will make 8 loaves. how many cup de butter will she need?

How do you Graph f (x) = 5x^2

How can you check that you have correctly converted frequencies to relative frequencies?

Danielle will use the instructions in the box below to make a cleaning solution I 13 cups of water to every 2 cups of concentrated cleaner which of the following proportions can be used to find W, the number of cups of water Danielle will add to 5