Emily spends $28 on food. This amount of 4/9 of her allowance, what is Emily’s allowance? please help with explanation !

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

How can you construct perpendicular lines and prove theorems about perpendicular lines

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2