Math

Algebra

400

x·(x+2)=2499, what is (x+1)²?

2500

Fraction

300

3/9÷2/6=?

1

Area&Perimeter

100

The length of a rectangle is 6, and it can just fit in 3 circles, what is the rectangle's perimeter?

16

200

The diameter of a half circle is 36cm, what is it's perimeter? (suppose ∏=3.14)

92.52cm

Volume

100

If the length of a square is 4cm, then what is the volume of the square?

64cm³

Ratio

300

Simplify the ratio: 56:1001:10010

8:143:1430