First question: Answer is D
∵ Area of rectangle is L ⋅ W = 12 ⋅ 6 = 72
∵ Area of the shaded region is 36
∴ The area of the unshaded region =
the area of the whole rectangle - the shaded region =
72 - 36 = 36
∴ The area of the unshaded region = 36
Second question: Answer is A
∵ Area of triangle is Bh =
⋅ x ⋅ 4 = 32
∵ Height (h) = 4 ft
∴ Base (B) = ⋅ 2 = 8 ⋅ 2 = 16
∴ Base (B) = 16 ft
Third question: Answer is D
6.009 = 6 + 0.009
Fourth question: Answer is B
104.0032 = One hundred four and thirty-two ten-thousandths
Fifth question: Answer is B
∵ Perimeter of rectangle = 2(W+L) =
2(80+120) = 2 ⋅ 80 + 2 ⋅ 120 = 160 + 240 = 400
∴ He needs 400 of fencing