Plzzz Helppp!! (Question 1)
What values of X and Y satisfy the system of equations 8x + 9y = -3
6x + 7y = 1

(Question 2)
What is the system of equation
9x + 8y= 3
6x-12y=-11

What two criteria are needed for triangles to be similar

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?

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio