Calculate: 36 + 22

Solve: 6x + 7 = 4x + 21

Find the distance between (4, 1) and (9, 6)

Simplify the ratio 35:25

Find the mean of: 20, 17, 2, 3

Calculate: 50 + 64

For y = x³, find y when x = 4

Calculate the area of a right triangle with perpendicular sides 12cm and 11cm

Simplify the ratio 6:4

Find the mean of: 3, 5, 9, 8

Calculate: 79 + 41

Simplify: 4x + 2x

Calculate the distance between (6, 10) and (9, 14)

Simplify the ratio 24:21

Calculate the range of: 55, 61, 72, 50, 80, 66

What is the missing number: 77 + ? = 133

Solve: 7x + 2 = 6x + 6

Find the hypotenuse of a right triangle with sides 8cm and 15cm

Calculate 10% of 75

Calculate the mean of: 34, 24, 44, 33, 10, 22

Calculate: 52 + 85

Collect like terms: 3x + 7y + 8x + 7y

Opposite = 9cm, adjacent = 16cm. Calculate the angle

Calculate 25% of 50

Find the range of: 16, 42, 16, 44, 45