exam Maths Puzzle Numerical Ability

Write the equation of a vertical line that goes through the point (-49, 28)

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exam Other Question

The u.s population in 1990 was approxiamely 250 million, and the average growth rate for the past 30 years give a doubling time of 66 years. the above formula for the united states A health food store mixes granola that costs them $4 per pound and raisins that cost them $2 per pound together to make 25 pounds of raisin granola. How many pounds of each do they need to produce a mixture that costs them $80?