Mary has 18 marbles. if tim has 5 times as many marbles as mary, which number sentence shows how many marbles tim has? a. 18 × 18 = 324 b. 18 + 5 = 23 c. 5 × 5 = 25 d. 5 × 18 = 90

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line