Evaluation of Algebraic Expression

Leon has a container filled with 450 grams of tea leaves. Each morning, he uses 3 grams to make a cup of tea.

Which expression can be used to represent the amount of tea leaves remaining after x days?

• 450 – 3x

• 450 + 3x

• 3 + 450x

• 3 - 450x

What is the value of 𝒙 + 𝟖 if 𝒙 = 𝟑?

• -5

• 5

• 11

• -11

• -1

• 1

• -2

• 2

• 36

• 37

• 38

• 39

• 6

• 4

• -4

• -6

Find the numerical value of 3a – bc , if a = 2; b = -2 and c = 3

• 12

• 0

• 11

• 1

Find the numerical value of (x+2)² , if x = 4

• 36

• 12

• 24

• 72

Find the numerical value of (x⁴ – 2x²)³ + (x + 3)² , if x = – 1

• 3

• -3

• 1

• -1

Find the numerical value of 3(x+2) + 5 if x= -4

• -1

• 1

• -11

• 11

Find the numerical value of   4(5a – 3b) + a(b – 10a) , if a = 1; b = 2

• 12

• -12

• 8

• -8