One book costs £2.98. how much do 4 books cost?

7*7 8*8 9*9 10*10 11*11

Find u (t, x) solving the IVP on the half-line for the diffusion equation: ut - uxx = 0 (t>0; x in R) ux (t, 0) = sin (t) u (0, x) = x I can do this problem for the most part but I'm struggling to get rid of the non-zero Neumann boundary condition.

A square dinner napkin 8in. on each side is folded along its diagonal. Find the area of the folded napkin.

Is the number 731934030 written in standard form

How do you do a pemdas

In a triangle ABC, if A=x, B=2x, C=3x, then B=

the first term of an arithmetic sequence is 20 and the common difference is 15. Find the fifth term of the sequence

Suppose you find seven equally useful articles related to the topic of your research paper. In how many ways can you choose five articles to read?

He ran m miles last week. His goal this week was to run one mile more than twice the miles he ran last week. If he tripled his goal, write an expression in simplest form to show how many more miles he ran this week compared to last.

Margaret and Peter purchased timber to build the frame of their house. They purchased a length of 342 metres of timber. If the wastage was 8%, what length of timber was actually used in the frame?