[b] If the straight line which represents the relation : \( X-2 y=a \) intersects \( y \)-axis at the point \( (b, 3) \), then find the value of each of \( a \) and \( b \)

3. Use the system of equations shown for Parts A and B. \( \left\{\begin{array}{l}3 x-2 y=-10 \\ -4 x+3 y=13 \\ \text { A. Solve one of the equations for either variable. } \\ \text { B. Use substitution to find the solution of the system. }\end{array}\right. \).

Without actually calculating, find the value \( (-10)^{3}+(7)^{3}+(3)^{3} \) వాస్తవ గణన చేయకుండానే \( (-10)^{3}+(7)^{3}+(3)^{3} \) యొక్క విలువ కనుక్కోఁ

8 Olivia drove 170 miles each way (there and back) to visit her cousin. On the trip, Olivia drove an extra 20 miles to see the Grand Canyon. She also drove an extra 45 miles to see Lake Powell. Write one or more equations you could use to represent th number of miles Olivia drove on her trip.

83 Olivia drove 170 miles each way (there and back) to visit her cousin. On the trip, Olivia drove an extra 20 miles to see the Grand Canyon. She also drove an extra 45 miles to see Lake Powell. Write one or more equations you could use to represent the total number of miles Olivia drove on her trip. Show your work.

4. \( \frac{(4 n)!+(4 n+1)!}{(4 n+1)!-(4 n)!} \) ifadesinin eşiti aşağıdakilerden han- gisidir? \( \begin{array}{ll}\text { A) } \frac{2 n+1}{2} & \text { B) } \frac{2 n+1}{n} \\ \text { C) } \frac{2 n+1}{2 n} & \text { D) } \frac{2 n}{2 n+1}\end{array} \)