Abakery offered a coupon for its catering services. the cost before the coupon was $42.50, and the cost after the coupon was applied was $37.50. which of the following could be the function equation for this situation?
y = 5/x
y = x/5
y = x + 5
y = x – 5

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Acircle has a circumference of 28.36 units what is the diameter of the circle

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.