Yearly travel expenses for a family of four are normally distributed with a mean expense equal to $3,000 and a standard deviation equal to $500. What is the probability of travel expenses being greater than $4,000?

Challenge A baseball player hits a baseball and its height is modeled by the function h (t) = - 16t^2=12t+4. If t represents time, in seconds, find the time in seconds when the ball hit the ground

Solve for "y" x=5+8y-8

What is (gºf) (2) for f (x) = 10/x - 1 and g (x) = 7x - 4? A) 0 B) 4 C) 10 D) 12 E) 24

Write an equality that represents eight less that three times a number is more than 22

How do you write 4.293 in expanded form

How do I solve 15 + (5-x) / x=30

Hal is mixing bug spray for his roses. He has one gallon with a mixture of 90% water and 10% chemical. However, he needs a mixture that is 96.5% water. How much water should be added to the mixture to make it 96.5% water?

If a couple is planning to have 4 children, what is the probability that they would be all boys or all girls?

99 is a product of Jose score and 9

Luis wants to buy a skateboard that usually sells for $79.56. All merchandise is discounted by 12%. What is the total cost of the skateboard if Luis has to pay a state sales tax of 7.75%.