What is true about −9.94 and −9.8 when plotted on a number line? A) −9.94 is closer to 0
B) −9.94 is to the right of −9.8
C) −9.8 is less than −9.94
D) −9.8 is greater than −9.94

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.