Darnell wants to limit his screen time. Last week, he spent an average of 3 1 /2 h on his phone each day. This week, he reduces his screen time by 5%. To the nearest hour, how much time does Darnell spend on his phone this week? Show your work. Please help

Which of the following describes the symmetry of the graph of y = x3?

Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables