Ax 4 = e
b ÷ 4 = e
c + 4 = e
d - 4 = e

& a + b + c + d = 100

challenge
*what is the value of e ? *

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?