Which of these statements is true? a) 4 x 5 – 7 + 9 = 28 b) 4 x 5 – (7 + 9) = 22 c) 4 x 5 – (7 + 9) = 4 d) 4 x 5 – 7 + 9 = 44

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.