This was on my algebra homework, i am awful at word problems. !
dan and lisa went on vacation. it costs $20 a day to rent lawn chairs and $15 a day to rent umbrellas. the total lisa and dan both spent was $245. lisa spent 1 day less than dan. how much did dan spend?

a. $17
b. $140
c. $80
d. other and specify the amount.

Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

If i have 20$ and i gave 5$ away how much i got

Answer for 10 points show work you guys in advanced < 3