Simplify each expression. If not possible, write simplified.

1. 12a - a

2. 3x + 6x

3. 3x - 1

Which expression is equivalent to 18x + 45

What is the remainder when forty five is divided by 7?

How many 25cm cakes fit into a 600 500 tray

Of 140 seventh-grade students, 15% earn the Presidential Physical Fitness Award. How many students earn the reward?

what is the solution 1/3c = 3/8; c=3/4

The formula PV = 300 R is used in chemistry. How can this formula be solved for P

a truck uses 15 gasoline to travel 180 miles. How much gasoline will the truck use to travel 252 miles?

Trevers heart rate is 78 beats per minute. how many times does his heart beat in 10 seconds

A track coach want to know how good the runners on another team are which quantity makes the most sense for the coach to study A. their average height B. their average shoe size C. their average time to run a mile D.

odún and aderonke have 6:4 in 80 units of transcorp's share. how many units of this shares belong to odún