Directions: Solve for the variable in the following equations. 1. Addition:

a. x - 2 = 10

b. s - 4 = 6

c. y - 10 = 24

d. t - 3 = 9

2. Subtraction:

a. x + 2 = 10

b. s + 4 = 6

c. y + 10 = 24

d. t + 3 = 9

3. Multiplication

a. 1/2x = 10

b. 1/4s = 8

c. 1/3t = 6

d. 1/5 y = 20

4. Division

a. 4x = 32

b. 13x = 39

c. 5x = 25

d. 10x = 100

5. Mixed Practice

a. x + 4 = 7

b. 33 - y = 44

c. s + 18 = 26

d. m - 40 = 20

e. z + 100 = 100

f. x + 22 = 23

g. s - 4 = 96

h. 1/4x = 4

i. 24x = 3

j. 1/5x = 50

k. 1/3y = 33

l. t + 12 = 16

m. t - 12 = 16

n. 1/2q = 8

o. 12t = 24

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

Match the following terms with their definitions. 1. bisector of a segment ray ba and ray bc are opposite rays if a, b, and c are collinear and b (the endpoint of both rays) is between a and c. 2. opposite rays a ray, , is the set of points beginning at point a and going infinitely in the direction of point b. 3. collinear points a line or segment that intersects the segment at its midpoint. 4. betweenness of points a set of two or more points all on the same line. 5. ray the distance between the endpoints of a segment. 6. space point b is between a and c if a, b, and c are collinear and the equation ab + bc = ac is true, where ab, bc, and ac are the distances between points a and b, b and c, and a and c, respectively. 7. midpoint of a segment a set of two or more points all on the same plane. 8. coplanar points the point on a segment that divides the segment into two equal segments. 9. length of a segment the set of all possible points. 10. line segment the set of two different endpoints and all points between them.

55 bridesmaids want to make 325 325 decorations for a wedding. each decoration takes about 212 2 1 2 minutes to make. which response gives the best estimate for the amount of time each bridesmaid will spend making decorations?