How many photons with 10 ev are required to produce 20 joules of energy?

In Asad's class, 4/5 of the students like cake. Of those, 2/3 like chocolate cake. What ftaction of Asad's class likes chocolate cake? A. less than 2/3 B. exactly 2/3 C. between 2/3 and 4/5 D. more than 4/5

What shapes cannot generate a regular tessellation

An animal shelter has cats and dogs. The ratio of cats to dogs is 3 to 5. If there are 15 dogs, how many cats are there?

Melody want to sell bags of mixed candy at her lemonade stand. She will mix chocolates pieces that cost $4.89 per bag with peanut butter pieces that cost 3.79 per bag to get a total of 25 bags of mixed candy.

Which of the following simplifies to a negative number? A. negative 4 to the negative 4 B. the quantity negative 4 to the negative 4 C. the 4 to the negative 4 D. 1 over 4 to the negative 4

Consider the sum of 3/5 + 3/4. round each fraction and estimate the sum. add the two fractions using a common denominator and then round the result. which estimate is closer to the actual answer.

A restaurant can seat 100 people it has booth that seat four people and tables that seat six people so far five of the booth are full. what expression matches the situation

Solve - 7 = √ 2x - 9.

What is 5/7*w=40 1/2

sierra is supposed to practice flute for a total of 5 1/4 hours every week. this week, she practiced 15 minutes on sunday, 1 hour on monday, 30 minutes on tuesday, 45 minutes on wensday, 15 minutes on tursday, and 45 minutes on friday.