Heidi is saving for a new bike. She has already saved $57. If Heidi earns $9 per hour babysitting, how many hours does she need to babysit to afford the bike which costs $129? Write and solve a linear equation.

Carl is hanging pictures in his home. there is a space on a wall that has a width of 4 feet. carl has pictures with different widths. which picture width would fit in the space on the wall? a. 46 inches b. 60 inches c. 50 inches d. 54 inches