Asmall train at an amusement park is carrying passengers. half of the passengers are 4 years old, 1/10 are 5 years old, 3/10 are 6 years old, and 1/10 are 7 years old. what is the expected age for one of the passengers on the train? a. 5 yearsb. 5.5 yearsc. 6 yearsd. 6.1 years

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

This is about circle theorems. someone asap : (

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.