How can i measure the square footage of an apartment?

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Which of the following values in the set below will make the equation 5x + 6 = 6 true? (only input the number.) {0, 1, 2, 3, 4}