Answer:
1)x^2+9x+20
2)x^2-11x+28
1) explaination:x*x+4x+5x+5*4=)x^2+9x+20
2 explaination: x*x+-4*x+-7*x+-7*-4=)x^2-11x+28
Solve:-
x + 67 = 83
Inverse operation.
83 - 67 = x
83 - 67 = 16
x = 16
Check:-
x + 67 = 83
x = 16
16 + 67 = ?
16 + 67 = 83
Correct!
x = 16
Answer:
y=25
Step-by-step explanation:
10*2=20
20+5=25
The man would pay $491 less for a policy of 20 year life insurance than a straight life policy. So, the answer is the second one.
