I need help with 43 please help and answer today and the correct answer

What signals you that factoring by grouping is the best method to use when factoring a problem?

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120