Martha made earrings to sell at a craft fair. her booth rental is $35 a day. each pair of earrings costs $2 to make, and she sells them for $5 per pair. martha wants to make at least $200 profit for the day. how many pairs of earrings must she sell to reach her goal?

She has a fixed cost $35 for the day.
Then on each pair of earrings, she spends $2.
Her costs are fixed $35 and $2 per pair of earrings.

She sells each pair of earrings for $5.
Her earnings are $5 per pair of earrings.

Let x = the number of pairs of earrings she sells in one day









Since she must sell a whole number of pairs of earrings, she must sell at least 79 pairs of earrings.