For each handmade card jacquie sells, she makes a profit of $0.35. in one week she made a profit of $42. she sells the cards for $0.75 part 1 : about how many greeting cards do she sell that week? part 2 : about how much did she earn before paying expenses?

A) 120 cards; and

B) $90.

Explanation: Let x be the number of greeting cards sold that week. She earns $0.35 per card and earned $42; this gives us the equation 0.35x = 42 Divide both sides by 0.35: 0.35x/0.35 = 42/0.35 x = 120 She sold 120 cards. She sells each card for $0.75. This means she earned 0.75(120) = $90.  

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

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9. radius 6 feet, circumference 12π feet

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