The elevations, in feet, of three cities are marked on the number line shown below. The point 0 on the number line represents sea level. Which statement must be true?

A
City P and City Q are above sea level.

B
City Q and City R are below sea level.

C
City P is above sea level and City Q is below sea level.

D
City P is above sea level and City R is below sea level.

Geometry. i need step by step explanation on how to do each problem.

How do you multiply a mixed fraction by a regular fraction

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?