Alice invests $8000 in two certificates of deposit; the interest on the first certificate is 2%, and the interest on the second is 3%. let's denote the amount she invests in the first certificate by x. then the amount she invests in the second certificate is . the interest she receives on the first certificate is , and the interest she receives on the second certificate is . so a function that models the total interest she receives from both certificates is y =

Acircle has a circumference of 28.36 units what is the diameter of the circle

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis