15 more than 2 times a number is equal to -14. Find the number. please help asap and thank you in advance!

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

In the diagram below,abc is congruent to dec what is the value of x

Multiply and simplify. 2x2y3z2 · 4xy4x2 how to do?