Think Through Math Lesson progress Pre-Quiz Warm Up Guided Learning Practice Post-Quiz Finish Welcome, CHARIS Student Avatar Understanding Exponents - Item 30688Question 2 of 7 Which expression is NOT equivalent to the others? CLEAR CHECK 142×122×121 142×123 14×14×12×12×12 141×141×122+121

Option D.

Step-by-step explanation:

Consider the given expressions are

On solving these expression we get

First three expressions are equivalent and fourth expression is not equivalent to others.

Therefore, the correct option is D.

54 is the anser you are looking for

answer: number of steps anna and todd walk 150 and 250 respectively.

step-by-step explanation:

since we have given that

for every 3 steps of anna's steps , todd made 5 steps .

so, there will be ratio i.e.

so, the number of steps anna walk = 3x

the number of steps todd walk = 5x

according to question,

so,

number of steps anna walk is given by

number of   steps todd walk is given by