Okay i know im dum but im 12 in the 4th grade and everyone thinks im 10 but i have a hard question. Does anyone know what 1.5+2.5 is?

Which expression is the factorization of x^2+10+21

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?

What is the simplified form of 400x100 ? o 200x10 o 200x50 0 20x10 • 20x50