Final answer:
Jose needs to save $90 to buy the iPad.
Step-by-step explanation:
To represent the amount Jose needs to save to buy the iPad, we can subtract the amount he has saved from the cost of the iPad. Let x represent the amount Jose needs to save.
Equation: $145 - $55 = x
Solution: $90 = x
Therefore, Jose needs to save $90 to buy the iPad.