Total Pay: Basic + Overtime Premium + Unit Bonus Steps:

• Calculate basic pay for 8 standard hours: 8 × $20 =$160.
• Calculate overtime for 2 hours: 2 × ($20 × 1.25) = 2 ×$25 = $50.
• Calculate bonus for 2 extra units (32 - 30): 2 × ($20 × 1.5) = 2 ×$30 = $60.
• Add totals: $160 +$50 + $60 =$270.

Why C is correct:

• $270 matches the formula for combined basic pay, overtime at time-and-a-quarter, and bonus at time-and-a-half per extra unit.

Why the others are wrong:

• A: $210 ignores the$60 bonus for extra units.
• B: $220 omits overtime premium, using only basic rate for all 10 hours plus partial bonus.
• D: $310 double-counts overtime or misapplies bonus as full time-and-a-half for all hours.

Final answer: C