Kite abcd is reflected over the line y = x. what rule shows the input and output of the reflection, and what is the new coordinate of a'? a. (x, y)→(y, x); a' is at (2, −7) b. (x, y)→(−x, y); a' is at (7, 2) c. (x, y)→(−x,−y); a' is at (7, −2) d. (x, y)→(y,−x); a' is at (2, 7) i think the answer is c, but i'm not sure.

It would be B. (x,y)→(−x,y); A' is at (7, 2).

answer:   14

step-by-step explanation:          

pu you stank bo u ugly bo lol

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!