Formula to calculate the sum of angles for an n-sided

Which expression are equivalent to - 3 - (7.5+4)

the sides of a triangle are in the ratio 3: 4: 5 what is the lenghth of each side if the perimeter of the triangle is 90cm

The length of each of the sides of a pentagon are 3x + 6. Which equation can be used to find p, the perimeter of the pentagon? A. p = 15x + 30 B. p = 15x + 6 C. p = 3x - 11 D. p = 15x - 30

Nadia is selling tickets for a school event. She has already sold 17 tickets. Her goal is to sell at least 100 tickets. Each day she is able to sell up to 10 tickets.

What is the prime factorization of 45

The sum of the measures of angle A and angle B is 180°. Which term describes the relationship between angles A and B? adjacent angles supplementary angles complementary angles vertical angles

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