A contest is being held at a school fair for seventh-grade and eighth-grade students.
• There are 40 seventh-grade students at the fair.
• There are 30 eighth-grade students at the fair.
Each student's name was written on one card and placed
into a box. The principal will reach into the box and pick
one card without looking. The student named on the card
will be the winner of the contest. What is the probability
that the winner of the contest will be an eighth-grade
student?
a. 1/2
b.3/4
c. 3/7
d. 1/30

3/7

Step-by-step explanation:

ofc theres 70 students all together, the 3 represents 30 eighth-graders and the 7 is the 70 students all together, 3+4=7 blah blah blah :)

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)