Sofia made a beaded necklace with 2 white beads for every 5 purple beads. In all, she used 30 purple beads. Explain how to figure out the total number of white beads she used.

Sean has a job to tile a room 15 ft x 20 ft with 1 ft. square tiles. How many tiles does he need? A) 35 tiles B) 70 tiles C) 100 tiles D) 300 tiles

Use substitution to solve each system. 2y - 8 = 6x y = 3x + 2

A bowler knocks down at least 6 pins 70 percent of the time. Out of 200 rolls, how many times can you predict the bowler will knock down at least 6 pins?

Solve the algebraic expression y : 4, if y = 3.6

Four fair coins are tossed at once. What is the probability of obtaining 3 heads and one tail? 2

A lot is 50 m by 38 m. A house 20 m by 8 m is built on the lot. How much area is left over?

The area of a rectangle is 100 in.² the perimeter of the rectangle is 40 inches. A second rectangle has the same area but a different perimeter. Is the second rectangle or square?

Find the fifth term in the sequence defined as follows An=2^n

2 (15-3x) = - 6 what is x

The Buckley family drove 270 miles in 5 hours. The Fang family drove 364 miles in 7 hours. Which family traveled at the higher rate of speed and what was this rate? A. Buckley; 52 mi/h B. Fang; 52 mi/hr C. Buckley; 54 mi/h D. Fang; 54 mi/h