Find the slope and y-intercept of the line

a: slope=3; y-intercept=3
b: slope=0; y-intercept=3
c: undefined slope; y-intercept=0
d: undefined slope; y-intercept=3

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]