Use the quadratic formula to solve the quadratic equation . ( 8x ^ 2 + 32x + 34 = 0

Three times the difference of federico’s age, and 4, increased by 7, is greater than 37. what are possible values of federico’s age?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?