Find the annuity and interest. $100 periodic deposit at the end of every six months, 6.5% compounded semiannually. Time: 10 years

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

Can someone me out here number 4 plz

Draw a scaled copy of the circle using a scale factor of 2