To find the sum of 4/9 and 7/12, Mario rewrites the fraction as 8/36 and 21/36. His answer is 29/36. Is Mario right? If not, show his error and correct it.

The clearance price of the dress decreases $36 over 12 days. Find the average rate of change.

Solve for b r=x (a+b)

Line v has a slope of - 2/3. Line w is perpendicular to. What is the slope of line w?

Which expression can be written as 4 • (3 8) ? a. 4 (3 8) b. (4 • 3) (4 • 8) c. (4 3) • (4 8) d. 4 • 3 8?

What is the range of h (x) ? -∞ < h (x) < ∞ h (x) ≤ 5 h (x) ≥ 5 h (x) ≥ 3

A toy store's percent of markup is 45%. a model train costs the store $50. find the markup. a. $72.50 b. $22.50 c. $27.50 d. $111.11

A herd of 49 horses has 19 white and some black horses. What is the ratio of black horses to all horses?

At most restaurants, the more food you order, the more money you have to pay. This is true whether you go to an overpriced "gourmet" restaurant where the plates are tiny but very expensive, or to a cafeteria where the portions are huge and the

What's the inequality of 4n-8<40

Fill in the blank to make the two fractions equivalent. 5/9 = / 36