Artur deu duas notas de cem reais parar pagar uma conta de 126 reais e 80 centavos. qual o valor do troco que ele deve receber a-71,20 B-71,80 C- 72,20 d- 72,80 E-73,20

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details

Find the measure of angle y. a. 115° b. 65° c. 43° d. 22°