A college student with a small start-up company produces skateboards to sell in his hometown. He spends $3,000 for tools and marketing items to advertise the skateboards. Supplies for each skateboard cost $12. He sets a sales price at $27 per skateboard. Write two functions that model the total cost to produce skateboards and the total revenue in terms of the number of skateboards sold. Enter your answer and explanation.

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.