A rectangle has side lengths (7.5a-1.5b) cm, (3.5a+4.5c) cm. and (6.5c+2a) cm, and (8.5b-6.5c). which expression represents the perimeter, in centimeters, of the rectangle?​

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

With both problems. a. s.a. p directions on photo ^