A regular polygon has 20 diagonals. determine how many sides there are.

1. What relationship do you see among the base, height, and area?

N=6x35+4 what does n represent in a division problem

The sum of 6 numbers is 824. The average of 5 of the numbers is 115. What is the sixth number? (1) 249 (2) 269 (3) 296 (4) 328

Triangle ABC and triangle DEF are similar. AC = 10, BC = 6, AB = Y in triangle ABC. In triangle DEF DF = X, EF = 5, DE = 7. What is the value of X and Y?

Mom and dad and two kids have to get across the river, and they found a boat, but it is so small it can carry only 1 adult or two kids. Luckily both the kids are good rowers, but how can the whole family get across the river.

What is 5 2/3 when simplified

Suppose that in 2008, 689,500 citizens died of a certain disease. Assuming the population of the country is 266 million, what was the mortality rate in units of deaths per 100,000 people?

Evaluate p6 if p = 3

100 divided by 4030 show work

Write an equation in slope-intercept form for the line that passes through (5,1) and is parallel to the line described by y=-25x+1.