Calculate: -3+7
a. -10
b. -4
c. 4
d. 10

unless if u could do my questions, if not i wouldn't want to

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

2y+y=5

add 2y and y

804.75

step-by-step explanation: