The record for a person holding his or her breath under water without special equipment is 823 sec. express this time in minutes and seconds.

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Which of the following is the true for f(x) = 5cos

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base