Helena scored a 75 on a history exam and an 80 on a science test. The class average
for the history test was 70 with a standard deviation of 2.5. The class average for
the science test was 75 with a standard deviation of 5. She believes that she did
better in science than history in comparison with her class. Explain her error.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!

my answer got deleted but it's a

step-by-step explanation:

i think u have 12 apples sorry again i don't really know if it correct i'm just tryna hrlp people out.