Kaylee works at Claire's Jewelry Store at the mall. She earns $7.75 per hour. She earned $93.00 over the weekend. Her final check for the week was $232.50 (before deductions). How many hours did she work in addition to the weekend hours?

18 hours during the week days

Step-by-step explanation:

weekend pay + week day pay = total pay

93 + week day pay = 232.50

Subtract 93 from each side

93-93 + week day pay = 232.50-93

week day pay = 139.50

She makes 7.75 per hour

139.50 = hours * pay rate

139.50 =  hours*7.75  

Divide each side by 7.75

139.50/7.75 = hours

18 = hours

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

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