What positive integer is closest to the value of \sqrt(230)

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss

7x^2-9x+5=0 find the discriminant and number of real solutions