Answer:
$840
Step-by-step explanation:
First, add 30 to 10.
Then, multiply your answer (40) by 21.
Finally, you get your final answer of $840.
Answer:
0 is an integer of the number
Answer:
-24
Step-by-step explanation:
All you really have to do is multiply -6 by 4, and that results in -24. Remember, if there is only one negative sign, it will be negative, but if zero or two negative signs are present, the answer will be positive.
Answer:
x^2 - 14x + 49.
Step-by-step explanation:
(x − 7)^2
= (x - 7)(x - 7)
= x(x - 7) - 7(x - 7)
= x^2 - 7x - 7x + 49
= x^2 - 14x + 49.
