A chemist needs a 30% iron alloy. How many grams of a 70% iron alloy must be mixed with 16 grams of a 20% iron alloy to obtain the requiered 30% alloy?

Gerri is working on a project that need to be halfway completed by Friday. So far she has completed 1/6 of the project how much of the project does she have finish by Friday. Explain how you got this answer

X squared equals x plus 56

The quarterback Tom Brady completes 60% of his passes. To simulate the outcome of a single pass we use the digits 0, 1, 2, 3, 4, and 5 to represent the outcome "the pass is completed" and the digits 6, 7, 8, and 9 to represent the outcome "the pass

What is t + 5 when t is 3?

Lilah's band had practiced 24 songs. At the performance, they played 7 of their songs in their first set and 8 songs in their second set. How many songs did they have for their third set, if they had to save one song for an encore?

7. Find the slope of the line through (-2,6) & (3,14).

Circular gears P and Q start rotating at the same time at constant speeds. Gear P makes 10 revolutions per minute and Gear Q makes 40 revolutions per minute.

A triangle with vertices (0, 1), (4, 1), and (1, 5) is reflected across the x-axis. What are the new vertices of the reflected triangle?

Using only whole numbers Nikki wrote as many multiplication equations as she could with 12 as the product what where her equations

The price of an item is $12.25. You give the cashier a $10 and a $5 bill. What is the change?