7-\left(-19\right)-18+\left(-19\rig ht)+187−(−19)−18+(−19)+187, minus, left parenthesis, minus, 19, right parenthesis, minus, 18, plus, left parenthesis, minus, 19, right parenthesis, plus, 18.

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Ana drinks chocolate milk out of glasses that each holdof a liter. she has of a liter of chocolate milk in her refrigerator. 10 how many glasses of chocolate milk can she pour?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.