Answer:
A) 2x3 + 11x2 + 8x - 16.
Step-by-step explanation:
s(x).t(x) = (x + 4)( 2x2 + 3x - 4)
= x(2x2 + 3x - 4) + 4( 2x2 + 3x - 4)
= 2x3 + 3x2 - 4x + 8x2 + 12x - 16
= 2x3 + 11x2 + 8x - 16
An undefined value is any number which makes the denominator equal 0.
-4 is the only number that equals 0 when it is added to 4
-4 is the correct answer.
Table is attached below
From the table we can see that the Lemon cost is equal to 35% of the expenses
Let the expense be x, Lemons cost is 70
Lemon cost = 35% * x
70 = 35% * x ( 35% =
= 0.35)
70 = 0.35 * x
x = 
x= 200, Expense = $200
Given : Profit percentage is 15%=
= 0.15
Profit = profit percentage * Expense
Profit = 0.15 * 200 = 30
So profit = $30
She answered 70% questions correctly
Further explanation:
Percetages are used to calculae the success or failure in tests or exams usually.
Given

The percentage will be calculated as follows:

She answered 70% questions correctly
Keywords: Percentage, Success rate
Learn more about percentage at:
#LearnwithBrainly
Answer:
c
Step-by-step explanation: