Which ratios form a proportion?

A. 20/25, 14/21

B. 10/23, 18/7

C. 5/45, 4/36

D. 5/4, 4/5

Mr. Derbyshire makes a business trip from his house to loganville in 2 hours. One hour later, he returns home in traffic at a rate 20mph less than his rate going. If Mr.

1. Express 5700000 in standard form. 2. Express 7350000 in standard form. 3. Solve 6x - 5 = 5x - 4.5 4. Solve 7x - 4 = - 2x - 40

If the theater has 4,650 seats. If the theater sells all the tickets for each of its 5 shows, how, any tickets will the theater sell?

A person has 2 hamburgers and 5 sodas which is 1555 calories. Another person has 3 hamburgers and 2 sodas which is 1216 calories. How many calories is the hamburgers and how many calories is the sodas?

66 times 26 times 60 then multiply 1/2

Which statement are true regarding the development of trigonometry?

What is the scale factor of abc to def

A cube is numbered 1 through 6. If the cube is rolled twice, how many of the possible outcomes will have two even numbers?

56/67*34/56=reduced to smallest amount

9|-3n|-3=105 solve for absolute value