Monique randomly surveyed 30 students from her class and found that 18 had a dog or a cat for a
pet. If there are 870 students in Monique's school,
predict the total number of students with a dog or a
cat.

522

Step-by-step explanation:

Find the percent of students in her class that have a dog or cat:

Find 60% of the total amount of students in Monique's school:

I hope this helps!

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)