ASAP will Mark brain list please help

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?

Atriangle abc has two side lengths of 28 ft. and 24 ft. if angle c is 91°, what's the measurement of angle b?

Iready kara is sorting buttons by length for a craft project the line plot shows the length of each button if kara lines up all the 3/4 inch buttons,what would be the total length