Which of the following measures of spread are based on the mean? Check all that apply.

A. Interquartile range

B. Variance

C. Range

D. Standard deviation

Carlos is thinking of a shape that has one set of parallel sides and none of the sides are equal in length. What is Carlos' shape? Answer Choices a. square b. rhombus c. trapezoid d. parallelogram

Triangles ABC and DEF are similar. The ratio of the side lengths in triangle ABC to triangle DEF is 1:3. If the area of triangle ABC is 1 square unit, what is the area of triangle DEF?

If carpeting is sold at $4.50 per yard, what would 5 1/2 yards cost?

At a sporting goods store, the price of a bicycle is $650. During a sale, this price is marked down 45%. What is the sale price of the bicycle?

186,101 of the adults are males how many adults are females

Of the first 103 elements how many have just one letter in their symbols

Mike has $136.00 to spend on his ticket into the amusement park he spends 25% of that money on his ticket into the park. How much does Mike have left to spend?

A triangle is formed with side lengths of 7 inches, 24 inches, and 25 inches. is the triangle a right triangle

How many minutes are there in 6 3/4 hours

A researcher posts a newspaper advertisement offering $20 in exchange for participation in a short study. The researcher accepts the first five people who respond to the advertisement.