Answer:
c) $18 for a pack of 15 pens
Step-by-step explanation:
calculate the cost for 1 pen then compare
a) 7 ÷ 5 = 1.4
b) 15 ÷ 10 = 1.5
c) 18 ÷ 15 = 1.2 (has the lowest cost for a pen)
d) 48 ÷ 30 = 1.6
Answer:423 208 8819
Step-by-step explanation:
(x² + 3x - 1)(2x² - 2x + 1)
x²(2x² - 2x + 1) + 3x(2x² -2x + 1) -1(2x² - 2x + 1)
2x^4 - 2x³ + x² + 6x³ - 6x² + 3x - 2x² + 2x - 1
2x^4 - 2x³ + 6x³ + x² - 6x² - 2x² + 3x + 2x - 1
2x^4 + 4x³ - 7x² + 5x - 1
<span>(D)The result 2x4 + 4x3 − 7x2 + 5x − 1 is a polynomial.</span>
The answer is 72
You would have to add sixty-five plus seven
Answer:
x=4
Step-by-step explanation:
Because we know that PQ = RS, we can use the transitive property to replace PQ in the first equation with 29:
9x-7=29
1) Add 7 to both sides:
9x=36
2) divide by 9 on both sides:
x=4