Find the distance between (-6,6.5), (-2,6.5)​

Prove that quadrilateral is a rhombus.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?