The only solution of the equation x^2 + bx + 16 = 0 is x = 4. What is the value of b?

Bob and emily are brother and sister. bob has five times as many sisters as brothers, and emily has twice as many sisters as brothers. how many boys and girls are there in this family?

First 5 multiples of 32

In a class containing 32 students, a student can either do Government or History or both. If 16 students do Government, 18 do History and 3 do none of the subjects, find how many do both

A giraffe is 4.6 meters tall how tall would it be in centimeters

A vending machine has twice as many quarters in it as dollar bills. if the quarters and dollar bills have a combined value os $96.00, how many quarters are in the vending machine?

Which is the smallest 5 digit number that ends in 9 and reads the same forward as well as backwards

Circle the tens digit in each number 31, 94, 17,

345mi + 3hr + 15 mph the slowest car traveled

Describe the values of c for which the equation has no solution. |x+8|=c

A prism of height 12" has a rhombus with diagonals 6" and 8" for a base. Find the volume