Simplify
6x - (-3x)
9X
Yosemite Falls is the highest waterfall in North America and the fifth highest in the world. When viewed from the valley, it appears to be a single waterfall. However, it actually has three parts. The upper fall has the longest drop of 1430 feet. The middle cascade is 675 feet long, and the lower fall drops another 320 feet. What is the total length that the water falls?
2425 feet
Simplify
8(2x - 3)
16x - 24
Jack bought a coin for $200, which he later sold for $175. Find the percent of change. Did Jack make a good investment?
12.5% decrease; No, a good investment would yield an increase in value.
Simplify
7 + 2x - (- 4x) + 3
6x + 10
Due to the increased cost of its ingredients, DiStaola’s Pizzeria had to apply a 7% price markup on the majority of its menu items. Originally, a 16-inch one-topping pizza would sell for $12.99. What is the selling price
(to the nearest cent) of this same type of pizza with the markup?
$13.90
Simplify
4y - 9y + 7 - (-8) + 2y + (-2)
-3y +13
A small airplane used 5 gallons of fuel to fly a 2 hour trip. How many gallons were used each hour?
2 5/6 gallons
−10(1+ 4) − 5
-55
You paid $28.00 for 8 gallons of gasoline. How much would you pay for 15 gallons of gasoline?
You would pay $52.50
6(h-7) + 4h - (-7h) + 2(3h - 5) + 1
23h - 51
The Freedom Tower will sit at the northwest corner of the 16-acre World Trade Center site in New York City. The height of the tower is set to be 1776 feet. Suppose that 1 inch represents 74 feet on a scale model of the tower. What is the height of the model?
24 in.