Answer:
590/1000
Step-by-step explanation:
Simple equation and only requires one step to solve. Remember, a number and a variable juxtaposed means multiplications.

One step? I know. It seems more because I was slowing down the calculations for you so could understand everything happening. For someone who can do this in their sleep it would, for them, take one step.
Step-by-step explanation:
1kg of grapes = $1.50
=> 3.5kg of grapes = $1.50 * 3.5 = $5.25
1kg of carrots = $1.00
=> 2.25kg of carrots = $1.00 * 2.25 = $2.25
Total cost = $5.25 + $2.25 = $7.50.
Answer : 56666/10000
Step-by-step
5.6666 = 5.6666/1 = 56.666/10 = 566.66/100 = 5666.6/1000 = 56666/10000