What is the sum, in lowest terms? 3 1/2 + 2 3/4 + 1 1/4 + 1 1/4 =
A. 7 1/2
B. 7 3/4
C. 8 1/4
D. 8 1/2
E. 8 3/4

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.