Choose the best definition for the following phrase: combining like terms (1 point)
O
A letter that holds the place for some unknown value in mathematics
Och A process where you must look for terms that have identical variable parts and then combine their coefficients
O
A process where if two things are equal, one can be put in the place of the other and nothing will change
O
Terms that have identical variable parts

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

80 the answer is 80

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.