Use the order of operations to find the value of the following expression. 10^2 - 2 (8) + 11 1: 795 2: 155 3: 95 4: 15use the order of operations to find the value of the following expression.3 +81  ÷ 3 - (1 × 4)201220(the 81 is a division problem)

Question b of 10which of the following describe an angle with a vertex at a? check all that applyo a. labcов. савd dooo c_baco d. zacb

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:

Kelli swam upstream for some distance in a hour.she then swam downstream the same river for the same distance in only 6 minutes.if the river flows at 5km/hr, how fast can kelli swim in still water?