A submarine started 20 feet below sea level. It is now 10 feet below sea level. Which integer represents its change in depth?

A 20

B 10

C - 20

D - 10

Between which two consecutive whole numbers does the square root of 38 lie?

What is the probability that john and alex are born on tuesday?

What is the slope of the line above the y axis?

256 equals j subtracted from 199

Jenny's weight is 65kg. 1stone=14 pounds. what is jenny's weight in stonesand pounds

5.7 is rounded to one decimals place. Write down the maximum possible it could have been.

Fraction as a decimal - 9 2/5

Aurora's bike has wheels with a perimeter of 2.3 meters. When Aurora goes to school the wheels spin 850 times. How long is the road that Aurora does when she goes to school?

Definition of congruent

86.17 hrs divide into 30 days