Light bulbs are on sale, so Anna buys 7 packages. Each package has 4 bulbs in it.The letter b stands for the total number of bulbs. Which equation can you use to find b?7+4=b7×4=bSubmit

Liz made a tower that was 4 blocks high. Then her brother put 5 more blocks on top.The letter b stands for the total number of blocks in the tower. Which equation can you use to find b?4×5=b4+5=bSubmit

Seventy of Myra’s classmates are traveling by bus to a football game in another town. They hired 2 buses, but there were only 64 seats. The remaining 6 students had to travel in a separate van.The equation 2b+6=70 represents the given scenario. What does b represent?

Question 27Each box contains b books.A shelf holds three and a half times as many books as is shown in this diagram.Which two expressions below represent the total number of books on the shelf?312312b + 4  7𝑏27𝑏2 + 14  7b + 14  7272(2b + 4)

Over the last decade, a nursery sold 97 200 flower bulbs packaged in identical boxes. How many bulbs could have been in each box?

Salma bought some books for $4 each and received a discount of $5 off of her total purchase. She spent $71 after the discount. How many books did she buy?(a) Write an equation that could be used to answer the question above. First, choose the appropriate form. Then, fill in the blanks with the numbers 4, 5, and 71. Let b represent the number of books.=+b=−b(b) Solve the equation in part (a) to find the number of books.=b