Tommy was going to sell all of his Pokemon cards to buy NBA 2K21. After selling half of
them he changed his mind and bought 17
more Pokemon cards. How many did he start
with if he now has 34

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Find the value of the variable and the length of each chord for #5 and #6.