hgghukghj4198 hgghukghj4198 14-10-2021 Mathematics contestada 1. Solve each problem and check your answer using estimates. a. $18.79 + $2.11 + ‐$1.92 + $17.28 b. $7.45 + ‐$24.45 + $74.17 + ‐$76.52 c. $98.45 − $10.63 + $2.82 − $20.26