Use mental math to solve the problem.

Mario sold his old skateboard for $45. If he buys a

new skateboard for double the price that he sold

his old one, how much did he pay for his new

skateboard?

Set 1: {0, 2, 4, 6, 8, 10} Set 2: {1, 3, 5, 7, 9, 11} what is the means to mad ratio? are they similar?

What is an integer in math

A bike path is 6 3/4 What whole number is closest to 6 3/4

Which statement correctly explains how Kasi should find a solution to the following system of linear equations using elimination? -4g-15h=-17 -g+5h=13

When we used mono in covalent?

8x=24 is 8x=24:4 the same

The population of bacteria in a petri dish doubles every 24 h. The population of the bacteria is initially 500 organisms. How long will it take for the population of the bacteria to reach 800? Round your answer to the nearest tenth of an hour.

Write the inequality by translating the math sentence. x is less than or equal to 8 and greater than - 3

35% of what number is 60?

A motorboat traveling with the current went 30 mi in 3 h. Against the current, it took 5 h to travel the same distance. Find the rate of the boat in calm water and the rate of the current.