9=7+a
a+8=b+5
Use both equations to work out the value of b

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

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

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.