For someone. some ppl know who

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Twelve less than a number is at most 20