7. Balloon sales start to increase after your little prank. A local party supply company notices that their maximum profit is reached when they sell 80 balloons and they earn $60 of profit. When they sell 50 balloons they earn $33 of profit. Write a quadratic equation in vertex form to represent their profit.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

no

step-by-step explanation:

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

cant see photo

step-by-step explanation: