If the half-life of a unstable isotope is 10,00 years and only 1/8 of the radioactive parent remains how old is the sample? A. 10,000 B. 20,000 C. 30,000 D. 40,000

The number negative eight is to the left of zero on the number line. Which choice expresses this fact in symbols?

Sofia learned 10 recipes to create party dishes. She learned these recipes in two weeks. How many recipes can Sofia learn in 5 weeks?

5x-2y=14. Covert from standard form to slope interceptecept

What happens to the shape of the ellipse as, the distance between the foci decreases

Are there any prime numbers that are also square numbers? Give an example or explain why not.

Mikey worked 8 hours on Wednesday, 6 hours on Thursday, and 7 hours on Friday. His gross pay for all three days was $187.95 A. $8.95 B. $8.98 C. $28.13 D. 65.63

Ray cupple bought a basic car costing 26,500, with options costing 725.00. There is a 6% sales rax in his state and a combined 50.00 license and registration fee. What was ray's total cost

theater technician charges a $200 flat fee and 5% of all profits from ticket sales per show. If the technician made $400.00 on a show, how much total profit was there from ticket sales?

Line L1 has the equation 3x-30y=6 Express the equation of L1 in the slope-intercept form

In Mrs. Smith's enrichment class, 25% of the students are boys. There are 7 boys in the class. How many total students are in Mrs. Smith's enrichment class?