Find the value of x... Please look at the attachment below

Steve earns $8 per hour his older brother earns $2 more per hour than steve what is the ratio of the money steve earns in an hour to the money of his brother earns in an hour.

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x