NO ONE IS HELPING ME PLEASE IM FINNA CRY I SWEAR I BEGGING YOUWRITE IT DOWN 1 is the first image question

2 is second image question

Part 2 :
1.-(-½ )-3(-2)

2.-20 ÷ (4 − (10 − 8))

3. -(7-9)-2[-5-(-9)]

Evaluate each expressions below.

4.-3x8-2x7-8x9

5. 4[30-(10-2)x3]

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to