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two plus twelve divided by four
2 + 12 ÷ 4
18 ÷ 9 + 2 * 6
14
g + 6t, when g = 2, r = 3, and t = 11
68
3 + 2 = 5 and 2 + 3 = 5 show which property of numbers?
Commutative
|12 + 2t|, when t = -2
8
the sum of three and seven divided by two
(3 + 7) ÷ 2
4(16÷2 + 6)
56
xy + z, when x = 6, y = 8, and z = 3
51
Distribute the following expression: -4(2x - 5)
-8x + 20
|16 + 4(3q + p)|, when p = 2 and q = -6
48
eighteen decreased by three times d
18 - 3d
13 - 1/3(11 - 5)
11
5x - (y + 2z), when x = 6, y = 8, and z = 3
16
Symmetric
-|10 - 7r + 8m + 2p|, when m = -4, p = 2, and r = 5
-53
four less than the product of twelve and a number
12n - 4
3[4 - 8 + 42(2 + 5)]
324
a2bc - b2, when a = 8, b = 4, and c = 16
4080
x + 3 = x + 3 shows which property of numbers?
Reflexive
|y - 2z| - 3, when y = 3 and z = -4.2
8.4
The Plaid Taxi Company charges $1.75 base fee plus $3.45 per mile. Danny plans to take a Plaid taxi to the airport. Write an expression to find the cost for Danny to take the taxi m miles to the airport.
1.75 + 3.45m
25 + [(16 - 3 * 5) + (12+3) ÷ 5]
29
(3y + x2) ÷ z, where x = -3, y = 4, and z = -5
-4.2
Always, Sometimes or Never: The commutative property holds for subtraction.
Sometimes (a number minus itself)
14 + 2|3c + 10a|, when a = -1/2 and c =-2/3
28