I only need help on part A and C.

Mop and Broom Manufacturing has tracked the number of units sold of their most popular mop over the past 24 months. This is shown. b. Compute a correlation coefficient for the data and evaluate the strength of the linear relationship. (Round your answer to 2 decimal places, the tolerance is +/0.01.) Correlation coefficient is . It indicates linear relationship. (Use not rounded amounts to answer this question.) c. Using the linear trend line equation, develop a forecast for the next period,month 25 . (Round your answer to 2 decimal places, the tolerance is +/0.01. Do not round intermediate results used to achieve this answer.) Forecast for month 25=