Amath class has three girls and 7 boys in the 7th grade and five girls and five boys in the 8th grade the teacher randomly selects a 7th grader and an 8th grader from the class 4a competition what is the probability that the students she select are boys write your answer as a fraction in simplest form

7/20

Step-by-step explanation:

Seventh grade: Total = 3 + 7 = 10

Number of boys = 7 boys

Probability of a boy being picked = 7/10

Eighth grade: Total 5 + 5 = 10

Number of boys = 5

Probability 5/10 = 1/2

The probability of the correct outcome = 7/10  *  1/2  = 7 / 20

7 / 20

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20