How many elements does each of these sets have where a and b are distinct elements?

a. p ({a, b,{a, b}})

b. p ({∅, a,{a},{{a}}}) ?

Factor the expression 3x^2 - 6x i will mark brainliest

Joakim is icing 30 cupcakes. he spreads mint icing on 1/5 of the cupcakes and chocolate on1/2 of the remaining cupcakes the rest will get vanielle icing how many cupcakes have vanielle icing

Mrs. Longchamp spent exactly $224 when she bought 28 more books for the library. She spent $96 on non - fiction books and $128 on fantasy books. The price of each non fiction was the same as the price of each fantasy book.

Simplify the answer if necessary. 1.) 8/10 : 7/8

Which ratios forms a proportion with 25/35? A. 3/5 B. 15/21 C. 24/34 D. 5/10

90% of students at a university use a backpack, while the rest do not. Of all the students, 50% carry their laptops with them and 5% carry neither a backpack nor laptop. What percentage of students carry their laptops and use a backpack?

Brianna's teacher asked her which of these three expressions are equivalent to each other 9x - 3 x - 4, 12x - 4, 5x + x - 4

I am the only number between 41 and 49 that has 5 as a factor. what number am i?

Solve the proportion: A printer can print 11 color pages in 2 minutes. How many color pages can the printer print in 7 minutes?

Four is three less than