Refer to the Excel output above. Roberta owns a small car dealership and she completed a series of studies to better understand what factors affect the price of cars. In this study she looked to see whether the size of the engine affected the cost of the car. There were three engine sizes (Note: 4 cylinder is a small engine, 6 cylinder is intermediate size engine and 8 cylinder is a large engine). How would you best describe this study?

answer: c is correct, a regular pentagon

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step-by-step explanation:

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500