Mr. arnold needs to repaint the outside of his house. he estimates that the area he needs to paint is about 1,600 square feet. each gallon of paint will cover about 250 square feet. mr. arnold has 1 gallon of paint left over from the last time he painted that he can use this time. will mr. arnold need to buy more than 5 gallons of paint? use an equation to complete the explanation for your reasoning.

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Agarden consists of an apple tree, a pear tree, cauliflowers, and heads of cabbage. there are 40 vegetables in the garden. 24 of them are cauliflowers. what is the ratio of the number of cauliflowers to the number of heads of cabbage?