Checking account a charges a monthly service fee of $2 and a per-check fee of $0.30, while checking account b charges a monthly service fee of $3 and a per-check fee of $0.20. how many checks would a person have to write for the two accounts to cost the same? a. 20 b. 10 c. 0 d. 31

15: 28read the summary of "an indian's view of indian affairs."15 betterin "an indian's view of indian affairs," it is asserted that conflicts could be reduced if white americansunderstood native americans..pswhich of the following would make this summary more complete? eleo the fact that chief joseph believes the great spirit sees everythinthe fact that chief joseph was born in oregon and is thirty-eight years oldo the fact that chief joseph states that he speaks from the hearthehehethe fact that chief joseph of the nez percé tribe made this claimebell- ==feetle===-felsefe ==submitmark this and retum.=

What multimedia system creates an immersive, real-life experience that the user can interact with?

For positive constants a and b, the force between two atoms in a molecule is given f(r) = −a r2 + b r3 , where r > 0 is the distance between the atoms. note: a and b are upper case letters. (a) find f '(r) = (b) find the critical point for f(r). r = (c) find f ''(r) = (d) find the value of r so that f ''(r) = 0.