Please help this is a quiz

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees