1. A new gaming chair costs $239.87. You have already saved $106.37 and earn $44.50 each week babysitting. Write and solve an equation to determine how many weeks, w, you must babysit to earn enough money to buy the new gaming chair. 44.5w + 106.37 = 239.87; w = 3 44.5w − 106.37 = 239.87; w = 9 44.5w − 239.87 = 106.37; w = 9 44.5 + 106.37w = 239.87; w = 3

2 Write the expression in simplest form.
the quantity negative two thirds x minus 7 end quantity minus the quantity negative 12 plus one sixth x end quantity
three sixths x plus 5
negative three sixths x minus 5
five sixths x minus 5
negative five sixths x plus 5

3.Write the math sentence as an equation: Negative nine times the sum of a number and 12.3 is 30.8
−9(r − 12.3) = 30.8
−9r + 12.3 = 30.8
−9r − 12.3 = 30.8
−9(r + 12.3) = 30.8

4.Write the statement "the sum of a number and 10.7 is at most −3.2" as an inequality.
−3.2 + b > 10.7
−3.2 + b < 10.7
b + 10.7 ≥ −3.2
b + 10.7 ≤ −3.2

5.Simplify the expression.

negative 15 plus the quantity negative 1 and six tenths plus 9 and 34 hundredths end quantity divided by 6 all times 3 squared minus 5 and 7 tenths
−4.125
−9.09
−12.96
129.09

6.Julie wanted to match Lisa's obstacle course record of 73.4 seconds. She has already spent twenty and one-fourth seconds on wall climbing and 11.78 seconds on the ropes. How much time did she have left to match the record?
61.62 seconds
53.15 seconds
41.37 seconds
8.47 seconds

7.Which expression is equivalent to 2 and one tenth raised to the fifth power divided by nine tenths raised to the fourth power, all raised to the fifth power?
0.55
0.56
2 and one tenth raised to the twenty fifth power divided by nine tenths raised to the twentieth power
2 and one tenth raised to the tenth power divided by nine tenths raised to the ninth power

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