In parallelogram ABCD below, AC ___ is a diagonal, the
measure of ∠ABC is 40°, and the measure of ∠ACD is
57°. What is the measure of ∠CAD ?

Solve 2x+y=3 x+y=5 in substitution method

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?