In a certain chemical, the ratio of zinc to copper is 3 to 14. A jar of the chemical contains 658 grams of copper. How many grams of zinc does it contain?

What is the value of the digit 1 in the number 13?

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days