The two lines graphed on the
coordinate plane each
represent a linear
equation. Which one of
the following ordered
palrs simultaneously
satisfies both linear
equations?

A.(-7,2)

B.(7,1)

C.(2,-7)

D.(5,5)

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.