There are 15 boys and 15 girls at a party. each boy shakes hands with exactly five people and each girl shakes hands with exactly seven people. how many handshakes were there in total?

180 hand shakes

Step-by-step explanation:

15 + 15 = 30

boys= 5x15 = 75

girls=7x15 = 105

75+105=180

180 handshakes in total

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.