I honestly think that the answer is d
<span> (3a2 + b) • (3a2 - b) would be ur answer x</span>
Answer:b
Step-by-step explanation:
So 5k-7=-7
You need to do the opposite of addition,which is subtraction so...
5k-7=-7
+7
__
K=0
and to double check it,replace the (or variable) with our answer (0)...
so
5×0-7=-7
solve the problem...and
-7=-7√
Answer:
15$
Step-by-step explanation:
cost of 1 cookie = 10/6
cost of 9 cookies = 9* 10/6 = $15