If you had 13 qs on your test and you had to solve 10 of them and from the first 5 qs you had to solve 4 out of 5. how many options do you have?

One integer is 8 times another. if the product is 72, then find the integers

Given that abcd is a rhombus, what is the value of x?

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?