Please help me with explanation and no links!

(q°r)(2)=7

(r°q)(2)=3

Step-by-step explanation:

(q °r)(2)= q(r(2))= q()=q()=q(2)=2^2+3= 7

(r°q)(2)=r(q(2))=r(2^2+3)=r(7)===3

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

a - base

b - exponent

so,