Answer:
1) x= sqrt 98 = 7 sqrt 2
Step-by-step explanation:
Answer: 20
f(-4) = -4² - (-4)
f(-4) = 16 + 4
f(-4) = 20
1÷3x when x=1
1÷3×1=1÷3≈0.67
Patrick spends $42.50
$8.25 x 4 = $33
$33 + 9.50 =
$42.50
c
S(20)=
5*20-2=100-2=98
