The line of symmetry for the quadratic equation y = ax2 + 8x - 3 is x = 4. What is the value of "a"?

You eat 3 8 of a pie and your sister eats 1 4 of the pie. Explain who ate more of the pie

Imagine that $1 = €1.40. Sam spends €50 and has €34 left. How many dollars did he start with?

A baseball and a bat cost $1.10 and if this bat costs. 10 cents more than the ball. how much did the ball cost?

Linear regression of y=.201x-7.41

Todd plans to swim 18 laps in the pool. Each lap is 50 yards. So far Todd has swam 738 yards. What percentage of the total has Todd completed?

In particular month, Mr. Clark spent $900 on food which is 30% of his monthly salary. FInd his monthly salary

Add these numbers 1.36 ounces + 3.75 ounces + 2.62 ounces equals what

Which term best describes the shapes below that are the same shape but not the same size

Find the percent of the number. 25% of 340

This may be easy but here's a movie mathematics problem for the beginners. There is a population of 50 people watching a halloween movie named "hocus pocus" and another halloween movie named "halloween town" with a population of 70 then the last one