Answer:
6 blue marbles
Step-by-step explanation:
20 marbles * .30 are blue = blue marbles
20 * .30 = 6 blue marbles
A = 2.1 ft^2
The area of a triangle is
A = 1/2 bh where b is the base and h is the height
A = 1/2 ( 2.8)(1.5)
58 degrees
The little square in the corner signals a right angle/a 90 degree angle. If x and 32 add up to 90, then x is 58.
