Question 1159627
z(0.10)=-1.28
z(.90)=+1.28
z=(x-mean)/sd
x-mean=-8.96 for lower
x=111-8.96=102 mm Hg for lower
x=111+8.96=120 mm Hg for upper

the sd of the sampling distribution would be 7/sqrt(10)=2.21
probability of mean being above 120 mm would be a z=(120-111)/2.21=9/2.21=4.07
probability z>4.07 is about 2 x 10^-5 or 0.000023

I rounded the mm Hg to the nearest integer, because BP cannot be measured with a cuff to less than a mm accuracy, if that.