When the plumber comes to my house to fix the leaky faucet, he charges a flat rate of $50 in addition to charging $22 per hour. If the final bill was $116, how long was the plumber at my house?

When the plumber comes to my house to fix the leaky faucet he charges a flat rate of 50 in addition to charging 22 per hour If the final bill was 116 how long w class=