Find the First Term and the Common Difference for the Arithmetic

question 309

Multiple Choice

Find the first term and the common difference for the arithmetic sequence. Round approximations to the nearest
hundredth.
- $\mathrm { a } _ { 12 } = 109 , \mathrm { a } _ { 68 } = 557$

• A) \(\mathrm { a } _ { 1 } = 448 , \mathrm {~d} = 21\)
• B) \(\mathrm { a } _ { 1 } = 21 , \mathrm {~d} = 448\)
• C) \(\mathrm { a } _ { 1 } = 21 , \mathrm {~d} = 8\)
• D) \(\mathrm { a } _ { 1 } = 448 , \mathrm {~d} = 8\)