Final answer:
Diego's family spent 150% of last week's grocery total this week, which is answer choice D.
Step-by-step explanation:
The question is asking to find what percentage this week's grocery spending is compared to last week's total. To determine this, we use the formula for percentage: (This Week's Total / Last Week's Total) × 100. Plugging in Diego's family's spending, we get (135 / 90) × 100, which simplifies to 1.5 × 100 or 150%. Therefore, Diego's family spent 150% of what they spent last week at the grocery store. This corresponds to answer choice D: 150%.