Help asap in a class of 30 students 20%have black hair 10%have blonde hair and 70%have brown hair calculate the numbers of students black hair blonde hair and brown hair​

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.

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?