Maria has 18 fewer apps on her phone than Orlando. If the total number of apps on both phones is 40, how many apps are on each phone?

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

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.

For the inequality |c| < |d| to be true, which of the following must be true?