If the metal used to construct the spinner costs $13.25 per square centimeter, how much will it cost to make this part of the compass? round to the nearest cent. cost = $

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.