Nisha receives $10 each week for school expenses and uses $7.50 of the money to buy lunch. What percent of the $10 does she spend on lunches each week? a. 55% b. 65% c. 75% d. 85%

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

How do you find the circumfrance of a circle?

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?