Solving mathematical and real-world problems involving all forms of rational numbers

Meadow has 5 coins that total 42 cents. What 5 coins could she have

• 4 dimes and 1 penny

• 2 dimes 2 nickels and 1 penny

• 1 quarter 2 nickels and 2 dimes

• 1 quarter, 1 dime, 1 nickel and 2 pennies

Mr. Thompson is remodeling his kitchen. He is going to install tile on his kitchen floor. The area of his floor is 128 square feet. If the tile cost $1.23 per square foot, how much will it cost to tile the floor?

• $1.23

• $157.44

• 15.744

• 15744

1. If |x| - 4 = 2, what are the possible values of x?

• x=6

• x=-6

  x=6

• No solution

• x=0

A volcano erupted on the island of Krakatau, Indonesia. A tsunami developed and travels following the model s = 356 ⋅ √d where s is the speed in kilometers per hour and d is the depth of the water in kilometers. If a tsunami travels 60 kilometers per hour, what is the average depth of the water?

• 0.028

• 0.034

• 10.12

• 1.01

A skydiver falls at approximately 10 meters per second. Write a number sentence to express how many meters he falls in 40 seconds.

• 10 (40)

• -10 times 40

• 40/10

• 40 divided by -10

Perry went to the store and bought 9 boxes of marbles. Then, he gave away 105 marbles to his friends. If each box of marbles contains 16 marbles, how many marbles does Perry have left?

Evaluate the expression 9m – 105 to evaluate.

• 9m - 105 = 9(16) - 105 = 39

• 9m - 105 = 9 + 16 - 105 = -80

−2|−2r − 4| = -12

• {3,1}

• {-5, 1}

• {-3}

• No Solution

What is the area of this rectangle?

• 7 feet

• 6 square feet

• 7 square feet

• 14 square feet