HELP! Simultaneous equation word problem. -In the karting championship, Amaal won four races and came second twice, winning her prize money of £1920. Brian won one race and came second three times, winning him £1080. What are the value of the prizes?

Prize for winning=£?
Prize for second place=£?

Which expression is equivalent to 2x^2+7x+4?

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

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