How to multiply decimals without calculator?

Can a common denominator of mixed numbers be 20?

At Joe's Cafe 3 cup of coffee and 6 donuts cost 15$ and 5cups of coffee and 12 donuts cost $28 what is the cost of one donut and what is the cost of one cup of coffee

What is 11/4 as a decimal

What is (7,8.5) reflected over the y-axis

A student is driving a car at 60.0 miles/hour. what is its speed in m/s

Ulises lives 1.5 mi from school. Convert the distance to feet.

Choose two numbers from the list 3,4,6,12. Explain the difference between finding the greatest common factor and the least common multiple of the two numbers.

Can two data sets have the same mean but different standard deviations?

Ethel Meyer sells wheelchairs. She earns 11 percent commission on the first $5,000 and 14 percent on all sales over $5000. How much commission will she earn on $14,000 in sales?

An ice cream store sells 2drinks, in 5 sizes, and 5 flavors. In how many ways can a customer order a drink?