5. If your friend's doctor wants her target heart rate range to be between 143 and 170, and her average resting heart
rate is 62, what is her age? How did you backtrack
through these equations to find her age?

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

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

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step-by-step explanation:

5+2x=a

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