Mary estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error for her estimate? (Hint: subtract and then divide by actual number)

At the pet fair, there are 42 dogs and 35 cats. The pets must be split into small groups so that there are the same number of dogs in each group in the same number of cats in each group.

Marin county fair charges $4 to enter and $3.50 for each ride on the screamer. Sonoma county fair charges $7 to enter but only need $2 for each ride in the screamer.

How much is half of 2.893

1 x (-4) - 8 x 9/-3

There are approximately 402 1/4 m around a typical running track Sandra has challenged yourself to run 10 laps a day for five days. How many meters will Sandra run if she meets her challenge?

Lenora is a college student with a student loan of $7,500. Her tuition is $3,200 per year. She owns $470 worth of text books and a has a laptop computer worth $950. She also has a meal plan at school for which she pays $250 per month.

Solve the linear system of equations using addition. Graph the equations to verify your solution. - 4x=y+3 y = - 4 x - 3

Each costume needs 46 cm oc red ribbon and 3 times as much in yellow ribbon. What is thevtotal length of ribbon needed for 64 costumes? Ecpress yohr answer in meters.

Choose all the factors of 12. (Check all that apply.) 1 2 3 4 5 6 7 8 9 10 11 12

How do you show work for this problem? Bananas are $ 0.59/pound a. What is the constant of proportionality? b. How much does 25 pounds of bananas cost?