Sam sold half as many as Odel.
That means Odel sold twice as many as Sam.
Let x = number of pizzas sold by Sam.
Then Odel sold 2x.
Altogether they sold 126
x + 2x = 126
3x = 126
x = 42
Since x is the number of pizzas sold by Sam, that is our answer.
Answer: Sam sold 42 pizzas.
The answer to this question is 96cm2
Turn 9 1/9 into an improper fraction then find a common denominator and subtract <span />
The number of children who contribute toward the present is represented as

The cost of the present is 120 and the children split the cost evenly between them. The expression for this is

Liam has to give

towards the present
Liam has 250 with him
If he gives

away, then the money he has left is:
<span>5x ^2+ 15x = 0
</span><span>3x ^2 + 5x - 7 = 0
</span><span>x ^2 - 4x = 4x + 7</span>