In the expression 5 - w

the operation is

• 5

• -

• w

In the expression 5 - w

the variable is

• 5

• -

• w

In the expression 5 - w

the number is

• 5

• -

• w

Solve if a=4

4 + a

• 4

• 0

• 8

• 16

Solve if a=4

a x 7

• 3

• 11

• 2

• 28

Solve if a=4

a x a - 10

• 2

• 6

• 9

• 5

Solve if b = 9

b + 30 / 6

Solve if b = 9

(b-3) x 4

Solve if b = 9

11 + b - 3

Solve if a = 7 and b = 3

(a x b) - 15