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1. write an algebraic expression for the following. 6 less than 4 times a number n
a. 6-4n
b. 4-6n
c. -2n
d. 4n-6

2.sam had $50 before spending x dollars on new cds. how much money does he have left?
a. x+50
b.50-x
c.50/x
d.50x

3.name the set(s) of numbers for the real number, 10
a. rational
b. irrational
c. integer
d. whole

4.select the property not used in the following
(2+a) - 7
(a + 2) - 7
a + (2 - 7)
a + (-5)
a - 5

a. associative
b. commutative
c. distributive
d. subtraction

5.simplify the expression: 5(a+3)-4(3-2a)

a .-3a -23
b. 7a - 3
c. -7a +7
d. 13a +3

6.you open a savings account with a $50.00 deposit. you make a deposit of $20.00 and two more of $35.00 each and 2 withdrawals of $10.00 each. which of the following is an expression of the amount in your account after these transaction?

a. $50.00+$20.00- 2($35.00) +2 ($10.00) = $20.00
b. $20.00+2($35.00) -2 ($10.00) = $70.00
c. $50.00+$20.00+2($35.00) -2 ($10.00) = $120.00
d. $50.00+$20.00+2($35.00) +2 ($10.00) = $140.00

7.
evaluate the following: −62

8.evaluate the expression 2a+3b/(c−a)2a+3b/(c-a)when a = 3, b = 7 and c = 4.