When simplifying do the top number have to be bigger than the bottom number?

Ingrid spends $120 on car repairs. Which integer represents the amount of money Ingrid must earn in order to create a zero pair? A.-240 B.-120 C. 120 D. 240

Let f (x) = |x| and g (x) = x+2. what are the domain and range of (f o g) (x)

What is the volume of a hemisphere with a diameter of 12 cm

Write the numbers - 2.1, - 1 5/6, - 1 2/3 and - 2.2 in the form a/b from greatest to least

You are selling a 3-year-old model car. Your dealership is running a special by giving an 8 percent discount off the usual value of the vehicle. How much would you sell the car for?

george is driving at an average speed of 62 miles per hour. write an expression that would give his distance traveled for h hours. Make a table that records his distance for 3, 5.5., and 8.5 hours

There were 145 children that went to the park today and 60% of the children were boys. How many of the children were girls at the park? A. 58 B. 85 C. 87 D. 232

Does anyone know the answer to this question w (t) = 3t-1; t=4.2

Evaluate the following expressions for r = 13. a) (8 + r) x 3 b) 5r + 97

Water safety standards in southern California suggest that if a concentration of adenoviruses in the water is more than 1,000 per liter, further testing would have to be done to determine if the water was hazardous.