There are 90 students in a physics class. The instructor must choose two students at random.

Students in a Physics Class

Academic Year Males Females
Freshmen 8 13
Sophomores 2 10
Juniors 18 2
Seniors 9 5

What is the probability that a sophomore male and then a junior male are chosen at random? Express your answer as a fraction or a decimal number rounded to four decimal places.

a. 8/742
b. 6/30
c. 6/737
d. 8/21

Carl wants to buy a television that cost $500 including taxes. to pay for television he will use a payment plan that requires him to make a down payment of $125 and then pay $70.50 each month for six months what is the percent increase from the original cast of the television to the cost of the television using a payment plan.

Graph the equation. select integers for x

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck