3. Solve the system of equation using the substitution method. [ 2 x-5 y=18 y=x-4 ]8. Simplify the expression (-2u^7v^3)/(u^7) - (-2u^7v^3)/(u^7)= Enter your next step hereQuestion 2(Multiple Choice Worth 2 points) (01.06 MC) Simplify r^38 -1 -i 14. Alex's High End Games video game store makes a profit of of 1275.00 on the sale of 250 games How much profit would Alex make on the sale of 150 games? A. no profit at all B. 765.00 C. 1005.68 D. 1163.33Divide. (-144rs^3)/(-48r^2)s^(2)PREV 91011121314151617 NEXT
