125 minutes. 175 divided by seven is 25 and 25 multiplied by 5 is 125
We want to determine the equation in point slope form for the line that is perpendicular to the given line and passing through the point (5.6) .
The equation and the point is;

We know that for two lines to be perpendicular, the product of their slopes should be -1.
Therefore, the slope of the perpendicular should be;

The second condition is that the line must pass through the point (5,6) , to do thid, we write the equation of the line in point slope form which is;

Inserting all values, we have,

That is the final answer.
Answer:
Step-by-step explanation:
Hence, the surface area of a triangular pyramid is 140 square units.
Answer:
7 apples left
Step-by-step explanation:
So he has 15 apples. IF he gives aways 8, he only has 15-8= 7 apples left
20% off means it is selling for 80% of the original price ( 100% - 20% =80%)
Divide the sale price by 80% as a decimal:
380/0.80 = 475
The original price was $475
Justify:
Multiply the original price by 20% and subtract:
475 x 0.20 = 95
475-95 = $380 which is the sale price.