In a certain chemical, the ratio of zinc to copper is 3 to 19. A jar of the chemical contains 646 grams of copper. How many grams of zinc does it contain?

Ava, Carter, Like, and their dad each now a different section of their yard. Ava moes 1/12 of the yard, carter mows 2/12 of the yard, and Luke mows 4/12 of the yard their dad mows the rest of the yard. What fraction of the yard does the dad mow?

Marcus is planning a birthday trip to new york, a party bus cost $200 for one passenger how many people would be able attend if there is only 50 seats?

Brad and Wes are building a tree house. They cut a 12 1/2 foot piece of wood into 5 equally sized pieces. How long is each piece of wood. A 1/2 foot. B 2. 1/4 C 2 1/2. D 12 1/2

A family of 6 is going to the fair. They have a coupon for $1.50 off each ticket. If they pay for $46.50 for all their tickets, what equation could be used to solve for how much each ticket cost without the coupon?

Which equation can be used to find x, the length of the hypotenuse of the right triangle? A. 18+24=x B. 18^2+24=x C. 18^2+24^24=x^2

Evaluate F (x) - x2+1 for x=3

What is 39 divided by 9

A gardener is mowing a 20 yd-by-40 yd rectangular pasture using a diagonal pattern. He mows from one of the pasture to the corner diagonally opposite. What is the length of this path with the mower? Give your answer in simplified form.

A pond 85 feet across; 1 inch = 4 feet

Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster. Upper A magazine asks its readers to call in their opinion regarding the quality of the articles.