A carpenter makes and sells rocking chairs. The material for each chair costs $22.50. The chairs sell for $75 each. If the charpenter spends $420 on advertising, how many chairs must she sell to break even?

229 scientific notation

There are 5631 of pens in a warehouse. Each box contains 92 pens. How many pens are there in total?

Julia spent $60 on a book. the cost of the book was $20 less than twice what she spent on a backpack. how much did the backpack cost? express your answer numerically in dollars. mastering chemistry

One number is 5 more than another. the difference between their squares is 155. what are the numbers

Penelope is 4 times old as Jose. Jose is 3 years older than Eliot. If the sum of the ages of all three is 57, how old is Jose?

Charlie is at a small Airfield watching for the approach of a small plane with engine trouble he sees a plane at an angle of elevation of 32 at the same time the pilot radius radios Charlie and reports a plane's altitude is 1700 ft Charlie's eyes

Y=k/x, when y=2, x=5 a) Calculate the value of k b) Calculate the value of x when y=0.5.

Isabella spends $4.87 on paintbrushes and paint. How many of each does she buy

Jack has a summer job caddying at a golf course. Jack earns $120 a week. By rounding his weekly income to the nearest hundred dollars, find a reasonable estimate for his total income during the 12 week summer. A) $700 B) $800 C) $1200 D) $1700

Eat For 10 Hours. Fast For 14. This Daily Habit Prompts Weight Loss, Study Finds This is the title of an NPR article about a 2019 study that recruited 19 overweight adults diagnosed with metabolic syndrome (elevated blood sugar, elevated cholesterol