Answer:
x ≤ 8
Step-by-step explanation:
"Each" = variable
5 dollar each => 5x
You can spend 40 exactly or less, exactly => equal to
5x ≤ 40
5x/5 ≤ 40/5 (Divide both sides by 5)
x ≤ 5
10101₂ = 1×2⁴ + 0×2³ + 1×2² + 0×2¹ + 1×2⁰
10101₂ = 16 + 0 + 4 + 0 + 1
10101₂ = 21
0, 4, 7, 9, 11 those r the answers in order
Answer:10
2+3+2+3
is
10
