There are 540 degrees total in the interior angles of a regular pentagon.
Just so you know, the total degrees of interior angles goes up by 180 degrees.
A triangle is 180 degrees, a quadrilateral 360, and a pentagon 540.
The two slanted lines BC and AD are the same, then AD should be the same length, 27.
Since he gets 10$ per shirt, his revenue is 10y if y represents the shirts sold as he adds 10$ with every purchase. His expenses start with the base cost of 1500, then he also has to pay 3 dollars for each shirt, so his expenses add up to 1500+3y. Since he wants to make as much as he spent, his revenue has to equal his expenses and 10y=1500+3y. Subtracting 3y from both sides, we get 7y=1500. Dividing both sides by 7, we get y=214.something=215 by rounding up
The divisor is the denominator and the dividend is the numerator.
4. Volume is 5 cubed = 125cm^3
Surface area is 25x6=150cm^2
5. 50-((3x4.50)+(2x3.75)+(4x4.20))
7. 2n(4m+3)
6. 6a - 15
8. 3.14
9. 247.46
10. 1349.00
