6. at a firefighters' pancake breakfast, the firefighters served 345 people and raised $1395. if
the cost of a, an adult's ticket to the pancake breakfast, was $5 and the cost of c, a child's
ticket, was $3, what was the number of adult tickets sold?
system:
matrix:
number of adult tickets sold:

130 tickets, $5 each, to attend the firefighters pancake breakfast

Step-by-step explanation:

c&a=345

a by 5 and c by3=1395

c=345-a

2a+1035=1395

a=260

a=130

130 adults were buying tickets to get through a pancake breakfast

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: