You need to buy enough boards to make the frame of the triangular sandbox shown. If one board is 3 feet long, how many boards do you need to buy?

triangle sides that's marked are marked 17ft, 13ft, and 8.5 ft

13

38.5

12

19

Mark worked 60 hours last week. He spent 35% of his time working on the Rivers project, 45% working on the Brown project, and 20% working on the Richards project. How many hours did he work on the Brown project?

How do you balance the equation CaO+HCI=CaCl+H2O?

What is the difference between volume and surface area?

Expand and simplify (x+2) (x+3)

Solving a Problem Using an Equation with Two Variables Jillian's school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students. The ticket sales for opening night totaled $2071.50. The equation 10.50a + 3.75b = 2071.

Fractions that are equivalent to 4/12

The formula PV = 300 R is used in chemistry. How can this formula be solved for P

a truck uses 15 gasoline to travel 180 miles. How much gasoline will the truck use to travel 252 miles?

Trevers heart rate is 78 beats per minute. how many times does his heart beat in 10 seconds

A track coach want to know how good the runners on another team are which quantity makes the most sense for the coach to study A. their average height B. their average shoe size C. their average time to run a mile D.