Very confused & don't understand, if anyone can explain I appreciate it!

7x - (3x + 5) - 8 = 1/2 (8x + 20) - 7x + 5

Find the missing part of the unit rate: $6.50/2 lbs = ?$ / lb

What percent of 38 id 15

Whats the opposite of 3.78

A lake contains 4 distinct types of fish. Suppose that each fish caught is equally likely to be any one of these types. Let Y denote the number of fish that need be caught to obtain at least one of each type. a.

Suppose that you lose $10 if the dice sum to 7 and win $11 if the dice sum to 3 or 2. How much should you win or lose if any other number turns up in order for the game to be fair?

Write an equivalent expression. (-11f) - 2 (-f - 4) - 10

The price of a tent was decreased by 15% and sold for $76.49. What was the orginal price of tent in dollars

Simplify the expression 10 + - 6u + - 5 (-6u + - 10)

Last week we drove to drove to Detroit, at an average speed of 50 miles per hour, the trip took 4 1/2 hours. how far was it?

What number should be added to 95 to get a sum of 73