A nurse measured the blood pressure of each person who visited her clinic. A​ relative-frequency histogram for the systolic blood pressure readings for those people aged 25 to 40 is provided. The blood pressure readings were given to the nearest whole number. Approximately what percentage of the people aged​ 25-40 had a systolic blood pressure reading of at least 110 but less than​ 120?

answer: a and b

step-by-step explanation:

b if for most of the graph

d if y intercept

step-by-step explanation:

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.