D
When you add 2+3 which equals 5 so it’ll be y=5x-7. And plug in y into the other equation. 5x-7-5x+8=0. -7-8=0, -7-8 =-1 therefore there is no solution because-7-8= -1 not 0.
All triangles should equal 180 so the answer is B. When you solve it you get 60, 60, 60 which equals 180
-7.14 should be your answer!
Given the function:
To sketch the graph, we calculate some points:
For ease of calculation, pick values of x that are perfect squares.
Similarly:
Similarly:
Next, draw a line joining the points (0,5), (4,7) and (9,8) as done below:
800*.035 = 28 This is interest per year.
28 * 7 = $196 Total interest earned for seven years
Total money in account is $996