Chapter 12 Sequences and Series - 12.2 Analyze Arithmetic Sequences and Series - 12.2 Exercises - Skill Practice - Page 807: 46

$450$

For an arithmetic series, the sum for the finite series is given by: $S_n=\dfrac{n(a_1+a_n)}{2}$ Thus, we have $S_{10}=\dfrac{15 \times (2+58)}{2}=\dfrac{15 \times (2+58)}{2}$ Hence, we have $s_{10}=\dfrac{15 \times (60)}{2}=450$