The sum of the interior angles, s, in an n-sided polygon can be determined using the formula s=180{n-2), where n is the
number of sides
using this formula how many sides does a polygon have if the sum of the interior angles is 1 260'7 round to the nearest
whole number
a.6 sides
b.7 sides
c.8 sides
d.09 sides

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

i think the amount would be $140.62

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

step-by-step explanation:

why? because i noticed a pattern. 60 120. those numbers without the zero, make the 6 times tables leaving your answer to be b since 6 times 4 is 24 and adding a zero making it 240.