Your grandfather gave you $18 to buy a present. This covered 9/10 of the cost. How much did the present cost?

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.

If you answer 2+2 you will get over 80 points