How many four-digit positive integers contain exactly one 0?

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

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

Rob filled 5 fewer plastic boxes with football cards than basketball cards. he filled 11 boxes with basketball cards.