Answer:
See below
Step-by-step explanation:
1: (b+1)*(3b)*(b-5)
(3b^2+3b)(b-5)
3b^3-15b^2+3b^2-10b
3b^3-12b^2-10b
2: πr^ 2(h/3)
π(n-2)^2(12n/3)
π(n-2)(n-2)(12n/3)
π(n^2-2n-2n+4)(12n/3)
π(n^2-4n+4)(12n/3)
π(n^2-4n+4)(4n)
π(4n^3-16n^2+16n)
<em>(I'm not 100% sure with this one)</em>
3: (lwh)/3
((k-2)(2k+3)(3k))/3
((2k^2-4k+3k-6)(3k))/3
(6k^3-12k^2+9k^2-18k)/3
(6k^3-3k^2-18k)/3
2k^3-k^2-6k
Answer:
6
Step-by-step explanation:
Profit is revenue minus cost.
P(x) = R(x) − C(x)
P(x) = 28x − (7x + 117)
P(x) = 21x − 117
When the profit is 0, the value of x is:
0 = 21x − 117
21x = 117
x = 5.6
Rounding up to the nearest integer, the company starts to turn a profit at 6 milkshakes.
It’s A took this test before
7/12
1/3=4/12
2/3=8/12
7/12>1/3
7/12<2/3
