Will the numbers 7, 12, and 15 form a right triangle?

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.