Help me please Order the ratios from least to greatest:

9/4; 5 to 2; 13:6; 10/3; 20:7

Use a semi-colon to separate each ordered ratio.

Order the ratios from least to greatest:
5:16; 3/8; 2 to 6; 4/15; 12:40
Use a semi-colon to separate each ordered ratio.

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry