when adding like fractions, why are the numerators added but not the denominators? When are equivalent fractions used when adding two like fractions

An equation of the line of best fit for a data set is y=0.23x+6.72. Describe what happens to the line of best fit when each y-value in the data set increases by 3.

The infographic suggests making small payments on your student loans even before they're due, yet that won't automatically get you a credit card. What would be the benefit of making these early loan payments?

Imagine it is your new friend's first day in Pre-Calculus class. What types of prior knowledge about Calculus will he or she need to know to be able to catch on to this lesson?

1. Elena would like to know the average height of seventh graders in her school district. She measures the heights of everyone in a random sample of 20 students.

What is the maximum length of a rod that can fit into a box with dimensions 4 x 3 x 12in?

An ordered set of numbers or objects is a

Evaluate the expression when c = 6. 2² - 8c+5=

One cup of dog food weighs 1 4/5 ounces. A police dog eats 6 1/3 cups of food a day. How many ounces does the dog eat each day.

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Mary needs a 90% on her final exam to get an a for the quarter. The exam has 75 questions how many questions does Mary need to answer correctly in order for her to get an A