How do you set the problem?
the sum of the angle measures of any triangle is 180 degrees. suppose that one angle in a triangle has a degree measure of −9x2 and another has a degree measure of −10x4
. write an expression for the degree measure of the third angle in the triangle.

l.ln.lln.k.nkl

step-by-step explanation:

7

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.