Each day you run on a treadmill for “r” minutes and lift weights for 15 minutes. which expressions can you use to find how many minutes of exercise you do in 5 days?

a. 5(r+15)
b.5r+5•15
c.5r+15
d. r(5+15)

explain your reasoning:
a: they are both expressions with r as the variable

b: they are not equivalent expressions

c: they are equivalent expressions

d: both expressions contain the terms 5,r, and 15

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c

I’m pretty sure the answer is a