7. Kayce made $16 to $28 dollars per horse for grooming them. What is a reasonable amount of money she made if she groomed 18 horses this month? F. $280 G. $548 H. $380 J. $200
I need help lol on the easiest things ​

Which letters from the table represent like terms? a and b b and c a and d b and d

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Can you me find the slope! (30 points)