Mary rent a truck from a truck-rental company that charges a flat fee of $20 and $5 per hour. if mary rents the truck for h hours, the expression that shows the amount she has to pay is . if she rents the truck for 25 hours, the total amount she has to pay is .

If 3x+8=3x+8 is it one solution or no solution

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.

Graph the line with the given slope m and y-intercept b. m=-3,b=1