Express the following number using expanded form, unit form, and word form: 625.25

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?