if you’re good with permutations in math 30 please help out with questions 14,15 and 18!! real answers only

 14) B         15) A            18) D

Step-by-step explanation:

14)  6 colors × 2 styles = 12 choices

15) 1st digit   and      2nd digit          and       3rd digit

       6 #s       ×      5 remaining #s      ×     4 remaining #s  =  120

18) There are 26 - 2 = 24 letters and 7 numbers to choose from.

    24  × (24 -1) × (24-2) × 7 × (7-1) × (7-2)    =     2,550,240

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.