Select the correct answer. Evaluate the following expression when x = -4 and y= 4.
16 - 1
O A.
16,385
4
OB.
1,023
4
Oc. 1,023
4
OD.
1,025
4

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

If 1/2+2/5s=s-3/4,what is the value of s? a. s=3/4 b. s=25/12 c. s=-25/12 d. s=-3/4

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills