Which expression is equivalent to 0.4x + 6x + 12?

a) 10x + 12

b) 6.4x + 12

c) 6.4 (x + 12)

d) 18.4x

A dolphin is swimming with her friend. The dolphin jumps to a height of 4.5 meters above the surface of the water as her friend swims 9.8 meters directly below her what is the position of the dolphins friend relative to the surface of the water?

What percent of 36 is 19.8

Standard notation 6x10/3

10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 Calculate the following for the data set: Mean: Median: Mode: Range:

A gardener is planting two types of trees: type A is 5 feet tall and grows at a rate of 18 inches per year. Type B is 8 feet tall and grows at a rate of 14 inches per year.

Write in word form 7x10,000+5x10+4x1

What is the product of - 2 2/5 and - 3 5/6

Solve each system by substitution. (-3x + y = 20) (-5x - 7y = - 10)

What is 183 divided by 67?

Mary mixes white paint and blue paint in the ratio 2:3 she makes a total of 20 litres of paint how much more blue paint does she need to add to the mix ture so that the ratio of white paint to blue paint becomes 1:7