Mr. Chamness, the principal, has decided to have a dinner for the students with the top 10% GPA's. The average GPA is 3.23 with a standard deviation of 0.25. What is the lowest GPA a student may have to attend the dinner?
a. 3.55
b. 2.90
c. 2.0
d. 3.21

answer: answer: d) v= 1/6 bh  

step-by-step explanation:

since according to the given question,   a pyramid is placed inside a prism.

step-by-step explanation:

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x