A coin contains 1.25 grams of nickel and 3.75 grams of copper, for a total weight of 5 grams.

10. Find the sum. (8b + 7) + (6x - 4) + (5c + 8)

Luis counts the total number of ducks swimming on a pond each day. On Monday he counts 1 duck. On Tuesday he counts 2 ducks. On Wednesday he counts 4 ducks. On Thursday he counts 8 ducks.

Mr. Morgan has five daughters. They were all born the number of years apart as the youngest daughter is old. The oldest daughter is 12 years older than the youngest. What are the ages of Mr. Morgan's daughters?

A fruit salad with apples, oranges, and grapes is a (chemical change, mixture). circle the word that makes sense in each sentence.

4 books for $26 and 6 books for $42 What's the better buy?

glacier is moving at a rate of 0.3 inches every hour. The table below represents this relationship. Glacial Movement Distance Moved (inches) Time (hours) 0.3 1 0.6 2 0.9 3 x 4 What value of x completes the table? 1.2 1.5 3.6 13.3

What multiplies to equal 50, but adds to equal 12?

What is the value of x in the solution to the following system of linear equations? Y=3x+2 y=x-4

Combine like terms for this expression 2+1 + (-4r) + 7?

Write the number of words Jorge types in 5 minutes if he types 180 words in 2 minutes.