Can somebody me with this? ?
#19 and #21 i would greatly appreciate it if u could reply back asap ♡♡

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5