A rectangular lot whose perimeter is 350 ft is fenced along three slides. An expensive fencing along the lots length cost 18$ per foot. An inexpensive fencing along the two side widths costs only 3$ per foot. The total cost of the fencing along the three sides come to $2430. What are the lots dimensions? Need help asap

The sum of the first twenty terms of an arithmetic progression is 45, and the sum of the first fourty term is 290, find the first terms and the Common difference.

its b

step-by-step explanation:

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