Final answer:
The expression representing Ella's age, which is 10 years more than four times Leo's age (L), is 4L + 10.
Step-by-step explanation:
The question is asking us to translate a word problem into an algebraic expression. In this case, we want to represent Ella's age if we know that it is 10 years more than four times Leo's age, where Leo's age is represented as L.
To form the expression for Ella's age, we start by multiplying Leo's age by four, as instructed by the phrase 'four times Leo's age'. We then add 10 years to this amount to account for the '10 years more' part of the statement. So, the expression we are looking for is: 4L + 10
This expression can be used to find Ella's age if Leo's age is known. Simply substitute the value of L (Leo's age) into the expression and calculate the result to get Ella's age.