Each year for 3 years, the time it takes to run a mile decreases by 7 seconds. What number represents this total change in time.

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.