Roberta wanted to find out if studying more hours every week helped her math grade. The chart below shows how many hours Roberta studied each week and the grade she made on her weekly math test. Test Grades
Number of Hours Studying 3 4 5 6 7 8
Grade on Test 86 88 90 92 94 ?

If Roberta studies for 8 hours, what grade can she expect to get on her next math test?

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

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.