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.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

it shoild be o

step-by-step explanation: