Before conducting some experiments, a scientist mixes 1/2 gram of substance a with 3/4 grams of substance b. if the scientist uses 1/8 gram of the mixture for each experience, how many experiments can be conducted?

2-digit numbers less than 91 which are 1 less than a multiple of 10

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?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.