At the beginning of a laboratory experiment, the temperature of a substance is -12.6°C. During the experiment, the temperature of the substance decreases 7.5°C. What is the final temperature of the substance?

A ball is tossed upward from the ground. Its height in feet above ground after t seconds is given by the function ${\displaystyle h\left(t\right)=-16t^2+24t}$. Find the maximum height of the ball and the number of seconds it took for the ball to reach the maximum height.

Simon is making wreaths to sell. He has 60 bows, 36 silk roses, and 48 silk carnations. He wants to put the same number of items on each wreath. All the items on a wreath will be the same type. How many items can Simon put on each wreath?

What is the prime factorization of 125?

In the following exercises, use the divisibility tests to determine whether each number is divisible by 2,3,4,5,6 and 10.
375

The Universal Set, U, consists of the natural numbers from 20 to 60 incluive
a. Define or describe in words the following three (3) sets: factors of 64, prime numbers, and multiples of 3.
b. List the elements in each of your sets:
${\displaystyle A=\{}$
${\displaystyle B=\{}$
${\displaystyle C=\{}$
c. Determine the probability of each of the following:
${\displaystyle I.P\left(C\right)}$
${\displaystyle II.P(A\cup B)}$
${\displaystyle III.P(A\cap B\cap C)}$
${\displaystyle IV.P\left(BC\right)}$
${\displaystyle V.P(\left(AB\right)\cap C)}$

In a poker hand consisting of 5 cards, find the probability of holding 3 aces.

What is the LCM of 6 and 4?