Missy started with $217 in her bank account. She deposits $25.50 each week and never withdraws any money. What expression can Missy use to determine her account balance after w weeks?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?