Abag holds 28 blue marbles and 49 red marbles. what is the ratio of red marbles to the total number of marbles in the bag?

a.
7 to 11

b.
7 to 4

c.
4 to 7

d.
4 to 11

Question 5 spring semester final exam math evaluate

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x