Li’s brother used the work shown to determine that he must grow at most 6 inches to be able to ride the roller coaster. 48 less-than-or-equal-to h + 42. 48 minus 42 less-than-or-equal-to h + 42 minus 42. 6 less-than-or-equal-to h.

Is this correct? Explain.

It is correct

Step-by-step explanation:

Given

---- Missing information

Represent the additional height (i.e. 6 inches) with h

Required

Is correct

The term at most mean less than or equal to

So, for him to grow at most 6 inches; it means that 48 inches must be less than or equal to the sum of his current height and additional height needed.

Mathematically:

Substitute h for 6

Hence, the expression is correct.

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

6 on both sides and twelve on the top and the bottom

step-by-step explanation: