Which of the following proportions is false

A.) 24/30=20/25

B.) 18/48=20/50

C.) 25/45=75/135

D.) 10/25=40/100

What polygon is a concave octagon

Given e (-2,3) f (-2,-2) g (3,-2) h (3,3) prove efgh is a rhombus

What is the graph of the given system of equations? 2x + y=-3 -+y=-1

The histogram shows the weights, in pounds, of checked luggage on a flight. The median weight of a checked bag is 27.5 pounds. How does the mean of the data most likely compare to the median?

The label on the cars antifreeze container claims to protect the car between - 30C and 130C. To convert Celsius temperature to Fahrenheit, the formula is C=5/9 (F-32).

Find the difference (2ab+7a+1) - (8ab+9)

Use four 8's to make 8

Terri brought 1.74 meters of rope. Gracie brought 1.64 meters of rope. Who brought more rope

Which of the following source documents is used to summarize all of the costs incurred for a specific job?

What are factors of 9 (x+1)