According to the logic followed by the numbers in the following sequence, what is the missing number? 6 7 13 20 33 [?] 86 139

A)45 B)53 C)54 D)42​

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Michelle is planting flowers in her garden. she wants the ratio of daises to carnations to be 3 to 2. michelle wants to plant a total of 35 flowers. how many daises should she plant?

Indicate the formula for the following conditions: p^c(n,r)=