Answer:
an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).
Answer: B.
Step-by-step explanation: B makes the most sense because the other ones don't fit into the formula.
Answer:
$10.80
Step-by-step explanation:
I'm assuming that the $15.10 includes the $9.70 she got from the old picture.
$15.10-$9.70=$5.40
That means half of her weekly allowance is $5.40
If half of her weekly allowance is $5.40, then her entire weekly allowance is $5.40*2 = $10.80
Answer:
-9
Step-by-step explanation:
A = x - 1
3A = 3 * (x - 1) = 3x - 3
B = x + 2
3B = 3*(x + 2) = 3x + 3*2 = 3x + 6
3A - 3B = 3x - 3 - (3x + 6) = 3x - 3 + 3x*(-1) - 6*(-1)
= 3x - 3 -3x - 6
= 0 - 9
= -9
