Amanda sells homemade cakes for a profit of $39. She wants to switch to a new icing that increases profit as expressed by y=45x, where x is the number sold and y is the amount of profit. How many more dollars will she earn on each cake if she switches tot eh new icing? Explain how you found the answer.

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.