1. A student thinks he did really well on the GREs (SATs for grad school). He want to brag to his parents that he was a few standard deviations above the mean. The quantitative test has a mean of 151.3 with a standard deviation of 8.7 and the verbal test has a mean of 150.8 and a standard deviation of 8.5. If the student scored a 166 on the quantitative test and a 164 on the verbal how many standard deviations was he above the mean?

I'm not quite sure what to do here