Anthony is ordering shirts and jackets for the chorus classes . He needs to order at least 25 items to get a discounted price . Shirts cost $ 15 Jackets cost $ 20 . He can spend no more than $ 1,000 Which system of linear inequalities can be used to determine how many shirts , s , and how many jackets , he can order ?

Part of the total score for each program is the sum of five program component scores. on the free program, the sum of these five program component scores is multiplied by a factor of 2.0. yuzuru hanyu, of japan, earned scores of 9.07, 8.96, 8.89, 9.21, and 9.36 for the program components portion of his free program. how many total points did he receive for this portion?

This question awards 100 ! i really don’t want to fail i will also mark you !

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed