20 (4)^3-2
20(64)-2
1280-2
1278
Complete Question:
Here is the complete question:
<em>A lumber yard has five different lengths of 2 by 4 boards. Based on cost per linear foot, which is the best deal available on 2 by 4 boards at this lumber yard?</em>
<em>2 × 4 BOARD PRICES
</em>
<em>8 foot board for $2.95
</em>
<em>10 foot board for $3.15
</em>
<em>12 foot board for $4.10
</em>
<em>16 foot board for $5.80
</em>
<em>20 foot board for $6.95</em>
Step-by-step explanation:
Therefore, <em>10 foot board for $3.15</em><em> </em>is the best deal available on 2 by 4 boards at this lumber yard. It means you should be able to get 1 board for $0.315 when you buy 10 boards.
Fraction:
Decimal: 0.308
Explanation: means 4 ÷ 13. If you do that division, you get 0.3076 which can be rounded up to 0.308.
Answer:
15
Step-by-step explanation
We divide the amount he's selling them for, by the amount of money he needs to make.
75 divided by 5 equals 15.
He needs to sell 15 sports drinks to make $75.