Step-by-step explanation:
x is the hypotenuse so it means the other ones that are adjacent and opposite and you're looking for the hypotenuse so you can do c Square equals to a square + b square
Answer:
B
Step-by-Step
what???!!!! I don't understand! you can writen again
cost of each sub = $6, delivery fee = $2
Let $x be the cost of each sub and $c be the delivery fee
3x + c = 20
4x + c = 26
x = 6, c = 2