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?

Angel hikes at a rate of 2.4 miles per hour. If he hikes for 1/3 of an hour, how many miles will he hike?

Write the exprssion in stadered from by expanding and collecting like trems a. 4 (8m-7n) + 6 (3n-4m) b. 9 (r - s) + 5 (2r - 2s) c. 12 (1-3g) + 8 (g + f)

Use Euclid's division algorithm to find the HCF of 441, 567, 693

If T (n) = 3n - 5, what is they 3rd term?

What is 6,174,798,604 in scientific notation.

The directions for mixing water and powdered milk say that one should use 3 cups of water for each cup of powdered milk. how many cups of powdered milk are needed if 5 cups of water are used

Rewrite 1/4 1/3as a unit rate

if a train leaves every 12 minutes, and another train leaves every 9 minutse, and bolth have alredy let one parale tracks, at what time will they leave at the same time agine

Write 4.1 - 3 using words

Natalie went to the shoe store and bought two pairs of sneakers. One pair was $35.60, and the other was $49.95. If she has $100.00, how much will she have left after buying sneakers?