Can someone me select the value for the two questions

Find the greatest common factor of 28 and 35

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.