Which ratios are proportional to 14:21? choose all the answers that are correct

A. 2:3

B. 3:2

C. 28:63

D. 56:84

The base of a right circular cone has a radius of 4 inches and a slant height of 9 inches. If the radius and the slant height are multiplied by 6, by what factor is the surface area multiplied? A. 6 B. 36 C. 24 D. 54

You deposit $2500 in a bank account that pays 5% annual interest. Find the balance after 4 years if the interest is compounded monthly. Round to the nearest cent.

There were 6 students sitting at each of the four benches then 3 students left to get water how many students were left on the benches

3^ (3) •4 - (48-3) / 5^ (2) - 18

Which is the graph of y > 1 - 3x?

A bag contains five red marbles and four blue marbles. A second bag contains four green marbles and five yellow marbles.

Radium-226, a common isotope of radium, has a half-life of 1,620 years. How many grams of a 120-gram sample will remain after t years?

the combined length of 3 pieces of a board is 147 inches. the lengths of the pieces are in the ratio 5:7:9. what is the difference in inches between the longest piece and the shortest piece?

Determine the radius of a circle with a circumference of 14 pi inches

Jonathan collects postcards and stamps. The number of postcards in his collection is 12 more than the number of stamps. He has 39 postcards in all. If Jonathan has x stamps, which equation represents this situation and how many stamps does he have?