When multiplying signed numbers how do you know if it is negative or positive?

Hi integral of (x) (2^ (x^2+15))

Consider the mortgage loan of $150,000 at a nominal 6% yearly interest applied monthly at a rate of 0.5% per month. Monthly payments of $1,000 are being made on this loan.

Write a linear function f with the values f (3) = -4 and f (5) = -4.

Anna is considering writing and publishing her own book. She estimates her revenue equation as R=6.37x, and her cost equation as C=10,071+1.08x, where x is the number of books she sells.

To start a taco food truck service, a woman borrowed $7,500. If the loan was for 5 years and the amount of interest was $3187.50, what simple interest rate was she charged?

Your final bill is $51.28. This includes a 12% tip. What was the bill without tax?

Alicia can paint a small room 21 hours faster than Nina aloneness 4 hours slower than Alicia and Nina together. How long will it take them to paint the room together? Express your answer in decimal form

Of the coffee makers sold in an appliance store, 4.0% have either a faulty switch or a defective cord, 2.5% have a faulty switch, and 0.1% have both defects.

Alissa cut a piece of string that was 17 feet long. Lydia cut a piece of string that was 5 yeards long. Alissa wanted to cut her string so that it was the same as Lydia's. How many feet did she need to cut off? a:1 b:2 c:4 d:5

stuart is riding a ferris wheel at the county fair. The Function f (x) = - 16cos (π/30 x) + 18 represents the height of the seat stuart is on the ferris wheel, in meters, at any time x (measured in seconds) into the ride.