9. What's the sum of 2/5 and 2/4?

A. 10/20

B. 9/10

C. 6/7

D. 8/20

Find an equation that models a hyperbolic lens with a = 12 inches and foci that are 26 inches apart. Assume that the center of the hyperbola is the origin and the transverse axis is vertical.

In Triangle LMN, angle N is a right angle, LM=76 and MN = 40. What is the measure of angle M?

The radius of circle O is 24 and OC = 13. Find AB.

In your last 23 basketball games, you attempted 101 free throws and made 66. Find the experimental probability that you make a free throw. Write the probability as a percent, to the nearest tenth of a percent.

The tallest man ever recorded was Robert Wadlow, who was 272 cm tall. The tallest women on record was Zeng jinlian? Her height was 91% of Wadlows's height. (Round to the nearest cm).

Which word problem can best be represented by the fraction 5-8

The price of a car is usally £12,500 it is reduce to £11,625 what is the percentage of the reduction

An expression is shown as 3•3•3•3•3 answer for this and Part A: an equivalent form of the expression is given as, where a is constant. What is the value of a 3^a Part B:what is the simplified value of the given expression

A city is in the shape of a rectangle. in 1995 the width of the city was 5 miles and the length of the city was 7 miles. the width of the city is growing at a rate of 1 mile in 8 years.

Compare how you would model and record finding the sum and difference of two rocks weighing 2/8 pound and 3/8 pound.