Select all expressions that are equivalent to 16x-12-24x+4. Show or explain your reasoning.

1. 16x - 12 (1 + 2x) + 4

2. 40x - 16

3. 4 - 12 + (2x - 3x)

4. - 8 (x+1)

4.

Emma is doing a science project. She is measuring the time it takes a snail to move 5 kilometres. It takes the snail one hour to move 1 20 of a kilometre. If the snail moves at the same pace, how long will it take the snail to move 5 kilometres?

Are 1/2 equivalent to 4/8

At the bookstore checkout, you watch as the register rings up your purchases and coupons. The prices were as follows: $1.85 $8.56 $6.30 $2.73 $5.25 $4.09 $7.95 - $0.85 (coupon) - $2.10 (coupon) The register gives your total bill as $41.44.

What is the domain of f (x) = x^2

Adam is painting the outside of a 4-walled shed. The shed is 5 feet wide, 4 feet deep, and 7 feet high. How many square feet of paint will adam need?

A birdhouse is nailed into the trunk of a tree 5 feet up from the ground. if the tree grows 2 feet taller each year, where will the birdhouse be 25 years later? a. 56 feet up b. 50 feet up c. 6 feet up d. 31 feet up

Bacteria colonies can triple in size every 4 days if u start with 150 bacteria microorganisms how large would the colony be after 16 days

How many 4-digit numbers cannot be divided by 5?

Compare 7/21 and 3/18 using > < or =

The perimeter of a triangle is 19z-7. One side is 5z-9 and one side is 8z+3. What is the remaining side?