Gianna has a monthly cell phone plan that she uses to talk and text. she pays $20 every month and also pays $.05 for every text message she sends.

a) write an expression that can be used to represent the cost of her cell
phone plan. be sure to write a let sentence for your variable.

b) gianna sent 243 text messages last month. how much was her monthly cell phone bill?
show all work(:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

360/29

step-by-step explanation: