Hello :
<span>Factor completely. a^2 - 25b^2 :
a²-25b²=a²-(5b)² = (a-5b)(a+5b)</span>
Simple, take
868 and round it up to 870
then, take
28 and round it up to 30.
Finally, 870/30
870/30=29
Thus, use the expression 870/30.
Answer:
116
Step-by-step explanation:
82 brownies sold for $1 each is $82 in total
140-82=58
each cookie is sold at $0.5 so we need to multiply the rest of the cash by 2
58×2=116
so he needs to sell 116 more cookies to reach his goal
No there are 16 cups in a gallon its equal
<span>r(s+t)=u
rs + rt = u
rt = u -rs
t = u/r - s</span>