A plumber charges $75 to visit your house plus $50 per hour in labor costs to make any
needed repairs. Write the equation of the linear function that models the relationship
between the number hours, h, and the total Amount due, A, for the repair.

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2