Hi, i need to do a research of math... and my teacher told us to look for the concept of "circular crown". Can someone help me please??

(a) solve h+2/6 = h-3/4(b) solve the following simultaneous equations. 2x = y + 66x - 2y = 13x = ? y = ?

If g^-1(x) is the inverse of g (x) which statement must be true

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%