Is 7 a integer and is it a whole number

Yes!

Step-by-step explanation:

7 is a whole number. (aka, it isn't a decimal or a fraction.)

Continuing with the second part, the definition of an integer is: (a whole number; a number that is not a fraction.) 7 is not a fraction/decimal, and is a whole number. Therefore, we can conclude 7 is both a integer and a whole number.

i think it would be 42cm

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.