The fourth graders at Mathews Elementary are having a car wash to earn money for an upcoming field trip. If they wash 30 cars, and each driver donates $10, how much money will they earn?

$300

Step-by-step explanation:

If the fourth graders receive $10 of donation for each car they wash, to know the total earnings, we just need to multiply the value of the donation for each car by the total number of cars they washed.

As they washed 30 cars, and they earned $10 for each car, we multiply both values to know the total earning: 30*10 = $300

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465

2y+y=5

add 2y and y