Julie wrote the rate $108 in 6 weeks as a unit rate. determine her mistake and correct it.

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

With alll of except for the 2 that i did already