The formula for the area of a triangle is A=1/2bh. solve the formula for h. use the new formula to find the value of H. A= 54in and the base of the triangle is 12 in. Please respond asap! D;

50 points~ ! i have to turn this in tomarrow

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220