Tom needs to earn $77.82 in order to buy the game system.
Step-by-step explanation:
I wish i can help but i dont know the answer. sosorry
Answer: 1.67
Step-by-step explanation:
Z = ( x - mean) / standard deviation
Z = (97-75) / 12
= 20 / 12 = 1.67
15/24=x/40
x=25
Please give brainliest and ask questions if you don’t understand!