Last year the chess club had 20 members. This year the club has 15 members. Find the percentage of change and state whether the percent of change is an increase or decrease

Antony buys one pound of oranges for $12 and sells it for $14. How can he write the profit in his account book? A. + $2 B. + $14 C. $14 D. - $2 E. - $12

Henry decorates the top of each cupcake with 3 walnuts. If he has 56 walnuts, is that enough to decorate 2 dozen cupcakes?

Solve for u: 75u+2=12.

There are 3900 workers in the three main buildings downtown. Twice as many people work in the largest building as in the smallest of the three. There are 500 more workers in the second-largest building than in the smallest building.

5•10^5 is how many times as large as 1•10^5

Sara likes to collect stamps. She has 68 boxes of stamps with 46 stamps in each box. She decides to share the stamps with her 3 older brothers. After sharing the stamps equally with her brothers, how many stamps does each person have now?

An 80% confidence interval is found to be (0.52, 0.58) what is the sample proportion?

Which best explains why all equilateral triangles are similar? a. all equilateral triangles can be mapped onto each other using dilations. b. all equialeratl triangles can be mapped onto each other using rigid transformations c.

The area of a rectangle is 33 m-, and the length of the rectangle is 5 m less than twice the width. Find the dimensions of the rectangle.

A regular decagon has a side length of 4 centimeters long if the decagon is divided into 10 congruent triangles each has an approximate height of 6.2 centimeters what is the approximate area of the decagon