If mary and bob share £60 in the ratio 5: 7. work out how much each person gets. show working

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How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212