ANSWER
175 pounds
Step-by-step explanation
The grocer buys strawberries for $1.38 per pound.
Let the cost be c.
Let the pounds of strawberries be p.
Since they cost $1.38 per pound, it means that the cost of the strawberries is:
c = $1.38p
The strawberry order cost $241.50. This means that:
241.50 = 1.38p
Divide both sides by 1.38:
p = 241.50 / 1.38
p = 175 pounds
The grocer ordered 175 pounds.