The mean mark for the class was 70%. There are 30 students in the class, 20 of whom are boys. The mean mark for the boys is 62%. What is the mean mark for the girls?

How do I solve this? Jacob is saving up for a down payment on a car. He plans to invest $2,000 at the end of every year for 5 years. If the interest rate on the account is 2.25% compounding annually, what is the present value of the investment? a.

What is 18-9=1 + I keep getting the answer 10 am I right?

at zoo, 3 pandas eat a total of 181 1/2 pounds of bamboo shoots each day. the male panda eats 3 times as much as the baby. thre female eats twice as much as the baby. how many pounds of bamboo shoots does the female panda eat?

2x-4y=8 x+2y=4 How many solutions (x, y) are there to the system of equations above? explain

What is the probability of rolling a 2 on a dice AND pulling a spade out of a deck of cards? 1/6 1/12 1/10 1/24

What is the answer to solve negative eight positive negative 2 for integers?

Aaron wants to buy a bicycle that costs $128. So far, he has saved $56. The equation a + 56 = 128 can be used to find the amount an in dollars that Aaron still needs to save. What is the solution to the equation?

joel is laying pipe for a sprinkler system before he plants his lawn. the lawn is a rectangle, 15 feet long and 8 feet wide. he needs to lay piece of pipe that will run along the diagonal of the lawn.

What is 0.418 in word form

If You Are Driving 80 MPH, How Do You Slow Down To 60MPH?