Are 9 (4-x) and 36-9x equivalent expressions

Estimate the value 9.9 squared times 1.79 and the square root of 97.5 divided by 1.96

Martha changed 350 US dollars into 385 Australian dollars. How many Australian dollars did she receive for each US dollar?

The world's largest ocean, the Pacific Ocean, has an area of about 200,000,000 km2, which can be written as 2 * 10n km2. What is n?

Write each sentence as an equation A number f multiplied by - 12.3 is - 73.8

There are 5,280 feet in one mile how many feet are in 143 miles?

You are playing a board game with a friend. At the start, you move four spaces back. On your next turn, you move two spaces forward. Which expression can be used to find how far you are from your original position?

How would I solve -1+2i / - 1-3i

A colony contains 1500 bacteria. The population increases at a rate of 115% each hour. If x represents the number of hours elapsed, which function represents the scenario?

Carrie needs $45 to buy her mother a gift she has 22% saved up already how much does she still need

A cafeteria has two sodas. On machine has the following flavors: cola, root beer, and lime. The second machine has a lemon, orange, cola, and cherry. Which set represents all flavors in the two machines?